With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Xzibit is American .
text_B: Alvin Nathaniel Joiner ( born September 18 , 1974 ) , better known by the stage name Xzibit ( pronounced `` exhibit '' ) , is a African American rapper , actor , and broadcaster .
REFUTES.