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diff --git a/examples/lessons/6_English_oneOrMany/js/ui.droppable.js b/examples/lessons/6_English_oneOrMany/js/ui.droppable.js
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+/*
+ * jQuery UI Droppable 1.7.2
+ *
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Droppables
+ *
+ * Depends:
+ *	ui.core.js
+ *	ui.draggable.js
+ */
+(function($) {
+
+$.widget("ui.droppable", {
+
+	_init: function() {
+
+		var o = this.options, accept = o.accept;
+		this.isover = 0; this.isout = 1;
+
+		this.options.accept = this.options.accept && $.isFunction(this.options.accept) ? this.options.accept : function(d) {
+			return d.is(accept);
+		};
+
+		//Store the droppable's proportions
+		this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight };
+
+		// Add the reference and positions to the manager
+		$.ui.ddmanager.droppables[this.options.scope] = $.ui.ddmanager.droppables[this.options.scope] || [];
+		$.ui.ddmanager.droppables[this.options.scope].push(this);
+
+		(this.options.addClasses && this.element.addClass("ui-droppable"));
+
+	},
+
+	destroy: function() {
+		var drop = $.ui.ddmanager.droppables[this.options.scope];
+		for ( var i = 0; i < drop.length; i++ )
+			if ( drop[i] == this )
+				drop.splice(i, 1);
+
+		this.element
+			.removeClass("ui-droppable ui-droppable-disabled")
+			.removeData("droppable")
+			.unbind(".droppable");
+	},
+
+	_setData: function(key, value) {
+
+		if(key == 'accept') {
+			this.options.accept = value && $.isFunction(value) ? value : function(d) {
+				return d.is(value);
+			};
+		} else {
+			$.widget.prototype._setData.apply(this, arguments);
+		}
+
+	},
+
+	_activate: function(event) {
+		var draggable = $.ui.ddmanager.current;
+		if(this.options.activeClass) this.element.addClass(this.options.activeClass);
+		(draggable && this._trigger('activate', event, this.ui(draggable)));
+	},
+
+	_deactivate: function(event) {
+		var draggable = $.ui.ddmanager.current;
+		if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+		(draggable && this._trigger('deactivate', event, this.ui(draggable)));
+	},
+
+	_over: function(event) {
+
+		var draggable = $.ui.ddmanager.current;
+		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
+
+		if (this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.hoverClass) this.element.addClass(this.options.hoverClass);
+			this._trigger('over', event, this.ui(draggable));
+		}
+
+	},
+
+	_out: function(event) {
+
+		var draggable = $.ui.ddmanager.current;
+		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
+
+		if (this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+			this._trigger('out', event, this.ui(draggable));
+		}
+
+	},
+
+	_drop: function(event,custom) {
+
+		var draggable = custom || $.ui.ddmanager.current;
+		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return false; // Bail if draggable and droppable are same element
+
+		var childrenIntersection = false;
+		this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function() {
+			var inst = $.data(this, 'droppable');
+			if(inst.options.greedy && $.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)) {
+				childrenIntersection = true; return false;
+			}
+		});
+		if(childrenIntersection) return false;
+
+		if(this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+			if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+			this._trigger('drop', event, this.ui(draggable));
+			return this.element;
+		}
+
+		return false;
+
+	},
+
+	ui: function(c) {
+		return {
+			draggable: (c.currentItem || c.element),
+			helper: c.helper,
+			position: c.position,
+			absolutePosition: c.positionAbs, //deprecated
+			offset: c.positionAbs
+		};
+	}
+
+});
+
+$.extend($.ui.droppable, {
+	version: "1.7.2",
+	eventPrefix: 'drop',
+	defaults: {
+		accept: '*',
+		activeClass: false,
+		addClasses: true,
+		greedy: false,
+		hoverClass: false,
+		scope: 'default',
+		tolerance: 'intersect'
+	}
+});
+
+$.ui.intersect = function(draggable, droppable, toleranceMode) {
+
+	if (!droppable.offset) return false;
+
+	var x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,
+		y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height;
+	var l = droppable.offset.left, r = l + droppable.proportions.width,
+		t = droppable.offset.top, b = t + droppable.proportions.height;
+
+	switch (toleranceMode) {
+		case 'fit':
+			return (l < x1 && x2 < r
+				&& t < y1 && y2 < b);
+			break;
+		case 'intersect':
+			return (l < x1 + (draggable.helperProportions.width / 2) // Right Half
+				&& x2 - (draggable.helperProportions.width / 2) < r // Left Half
+				&& t < y1 + (draggable.helperProportions.height / 2) // Bottom Half
+				&& y2 - (draggable.helperProportions.height / 2) < b ); // Top Half
+			break;
+		case 'pointer':
+			var draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left),
+				draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top),
+				isOver = $.ui.isOver(draggableTop, draggableLeft, t, l, droppable.proportions.height, droppable.proportions.width);
+			return isOver;
+			break;
+		case 'touch':
+			return (
+					(y1 >= t && y1 <= b) ||	// Top edge touching
+					(y2 >= t && y2 <= b) ||	// Bottom edge touching
+					(y1 < t && y2 > b)		// Surrounded vertically
+				) && (
+					(x1 >= l && x1 <= r) ||	// Left edge touching
+					(x2 >= l && x2 <= r) ||	// Right edge touching
+					(x1 < l && x2 > r)		// Surrounded horizontally
+				);
+			break;
+		default:
+			return false;
+			break;
+		}
+
+};
+
+/*
+	This manager tracks offsets of draggables and droppables
+*/
+$.ui.ddmanager = {
+	current: null,
+	droppables: { 'default': [] },
+	prepareOffsets: function(t, event) {
+
+		var m = $.ui.ddmanager.droppables[t.options.scope];
+		var type = event ? event.type : null; // workaround for #2317
+		var list = (t.currentItem || t.element).find(":data(droppable)").andSelf();
+
+		droppablesLoop: for (var i = 0; i < m.length; i++) {
+
+			if(m[i].options.disabled || (t && !m[i].options.accept.call(m[i].element[0],(t.currentItem || t.element)))) continue;	//No disabled and non-accepted
+			for (var j=0; j < list.length; j++) { if(list[j] == m[i].element[0]) { m[i].proportions.height = 0; continue droppablesLoop; } }; //Filter out elements in the current dragged item
+			m[i].visible = m[i].element.css("display") != "none"; if(!m[i].visible) continue; 									//If the element is not visible, continue
+
+			m[i].offset = m[i].element.offset();
+			m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight };
+
+			if(type == "mousedown") m[i]._activate.call(m[i], event); //Activate the droppable if used directly from draggables
+
+		}
+
+	},
+	drop: function(draggable, event) {
+
+		var dropped = false;
+		$.each($.ui.ddmanager.droppables[draggable.options.scope], function() {
+
+			if(!this.options) return;
+			if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance))
+				dropped = this._drop.call(this, event);
+
+			if (!this.options.disabled && this.visible && this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+				this.isout = 1; this.isover = 0;
+				this._deactivate.call(this, event);
+			}
+
+		});
+		return dropped;
+
+	},
+	drag: function(draggable, event) {
+
+		//If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.
+		if(draggable.options.refreshPositions) $.ui.ddmanager.prepareOffsets(draggable, event);
+
+		//Run through all droppables and check their positions based on specific tolerance options
+
+		$.each($.ui.ddmanager.droppables[draggable.options.scope], function() {
+
+			if(this.options.disabled || this.greedyChild || !this.visible) return;
+			var intersects = $.ui.intersect(draggable, this, this.options.tolerance);
+
+			var c = !intersects && this.isover == 1 ? 'isout' : (intersects && this.isover == 0 ? 'isover' : null);
+			if(!c) return;
+
+			var parentInstance;
+			if (this.options.greedy) {
+				var parent = this.element.parents(':data(droppable):eq(0)');
+				if (parent.length) {
+					parentInstance = $.data(parent[0], 'droppable');
+					parentInstance.greedyChild = (c == 'isover' ? 1 : 0);
+				}
+			}
+
+			// we just moved into a greedy child
+			if (parentInstance && c == 'isover') {
+				parentInstance['isover'] = 0;
+				parentInstance['isout'] = 1;
+				parentInstance._out.call(parentInstance, event);
+			}
+
+			this[c] = 1; this[c == 'isout' ? 'isover' : 'isout'] = 0;
+			this[c == "isover" ? "_over" : "_out"].call(this, event);
+
+			// we just moved out of a greedy child
+			if (parentInstance && c == 'isout') {
+				parentInstance['isout'] = 0;
+				parentInstance['isover'] = 1;
+				parentInstance._over.call(parentInstance, event);
+			}
+		});
+
+	}
+};
+
+})(jQuery);