With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: In 875 AD , the settlement of Iceland began .
text_B: According to the ancient manuscript Landnámabók , the settlement of Iceland began in the year 875 AD when the Norwegian chieftain Ingólfr Arnarson became the first permanent settler on the island .
SUPPORTS.