In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Legal forms of gambling in the U.S. state of Texas include the Texas Lottery; parimutuel wagering on horse and greyhound racing; charitable bingo, pull-tabs, and raffles; and three Indian casinos. Question: What dimensions of cards are used for the game that is a legal form of gambling where numbers are matched? Answer: 55
Legal forms of gambling in the U.S. state of Texas include the Texas Lottery; parimutuel wagering on horse and greyhound racing; charitable bingo, pulltabs, and raffles; and three Indian casinos.