With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The book A Game of Thrones : A Song of Ice and Fire was published before 1997 .
text_B: He began the first volume of the series , A Game of Thrones , in 1991 , and it was published in 1997 .
REFUTES.