With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Blizzard of Ozz was the effort of more than one person .
text_B: Album producer Max Norman concurs that Daisley and Kerslake made considerable songwriting contributions during their time in the band , while also noting that the Osbourne camp `` might want to dispute that now .
NOT ENOUGH INFO.