@Override
	public String toString() {
		String itemSetContents = "";
		int num = this.itemSet.size();
		for (int i = 0; i < this.itemSet.size(); i++) {
			itemSetContents = itemSetContents + this.itemSet.get(i).toString();
			if (i < num - 1) {
				itemSetContents = itemSetContents + ",";
			}
		}

		return "{" + itemSetContents + "}" + "-" + (this.itemSetSupport);
	}