Instruct: Classify Amazon reviews into positive or negative sentiment
Query: where are the yams!!

One of the KEY food items this instructs you to eat, is yams. No not sweet potatoes, which are often mislabeled as yams, but true yams. I have checked my local healthfood store (Whole Foods) and they don't sell them. Neither does my local supermarket store (Safeway). How are you supposed to follow this diet, if you can't even acquire one of the main items. There was some helpful information. However since the diet states you must eat all of the suggestions items and not just one or two, then I guess I can't do it without the yams. Thus, it was a big waste of my money.