With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Maria Sharapova was suspended for killing a person .
text_B: She had tested positive for meldonium , a substance that had been banned , effective January 1 , 2016 by the World Anti-Doping Agency -LRB- WADA -RRB- .
REFUTES.