Assertion: prison gang | /r/HasProperty | the mexican mafia
Facets:
Source sentences:
text: The ‘13’ is believed to stand for the letter M, the thirteenth letter of the alphabet, but it is also been rumored to pay homage to a California prison gang, the Mexican Mafia.
text: Around 1974, a group of Hispanic inmates at Arizona State Prison, Florence, formed a prison gang known as the Mexican Mafia.