With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The contemporary Boerboel has kinship ties with the ridge dog breed .
text_B: However , the Rhodesian Ridgeback and its descendants are known to have played a significant part , though no sign of a ridge is present in the modern Boerboel .
REFUTES.