With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Richard Lugar 's Senate seat went to the Democrats when Mourdock lost to Joe Donnelly .
text_B: In 2012 , Lugar was defeated in a primary challenge by Indiana State Treasurer Richard Mourdock , ending his thirty-six year tenure in the U.S. Senate , though his seat went to the Democrats when Mourdock lost to Joe Donnelly .
SUPPORTS.