With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Michelle Obama spoke at two Democratic National Conventions .
text_B: She returned to speak at the 2012 Democratic National Convention , and again during the 2016 Democratic National Convention in Philadelphia , where she delivered a speech in support of the Democratic Presidential nominee , and fellow First Lady , Hillary Clinton .
SUPPORTS.