With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Soundgarden and Pearl Clam are contemporaries of each other .
text_B: Soundgarden was the first grunge band to sign to a major label -LRB- A & M Records in 1988 -RRB- , though the band did not achieve commercial success until they popularized the genre in the early 1990s with Seattle contemporaries Pearl Jam , Nirvana , and Alice in Chains .
REFUTES.