Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fun workout for your brain.

Basic rules are easy to learn and remember, but the tile combination possibilities are endless. In order to use up all of your tiles, you must create groups of at least 3 tiles that share a common characteristic. For instance, a RUN is a set of numerically sequential tiles all of one color; a GROUP is a set of tiles that are different color variations of the same cardinal number. Joker tiles add spice to the game. Seems simple at first, but strings of moves can get very complicated ! Great brain-stimulating fun for ages 8 to adult.