With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Genetics has been ruled out as a cause of hearing loss .
text_B: Hearing loss may be caused by a number of factors , including : genetics , ageing , exposure to noise , some infections , birth complications , trauma to the ear , and certain medications or toxins .
REFUTES.