With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: John McEnroe 's volleying skills are unknown .
text_B: McEnroe is known for his shot-making artistry and volleying skills ; for his rivalries with Björn Borg , Jimmy Connors and Ivan Lendl ; and for his confrontational on-court behavior , which frequently landed him in trouble with umpires and tennis authorities .
REFUTES.