With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Michael B. McCallister , who is the president of Humana , has worked in the company for more than 30 years .
text_B: Michael B. McCallister , a 34 year company veteran , is president and chief executive officer of Humana .
REFUTES.