Black American Sign Language
{'<entity_0>': 'dialect of American Sign Language', '<entity_1>': 'Black American Sign Language', '<entity_2>': 'Black Sign Variation'}
[['Black American Sign Language', 'alternative', 'Black Sign Variation'], ['Black American Sign Language', 'description', 'dialect of American Sign Language']]
<entity_1> (BASL) or <entity_2> (BSV) is a <entity_0> (ASL) used most commonly by deaf African Americans in the United States.
['sign language']