With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Leta her brother with baby Credence on the sinking Titanic .
text_B: Leta reveals that Credence can not be her brother : as a child , she inadvertently caused her infant brother Corvus ' death while baby Credence was spared .
NOT ENOUGH INFO.