With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The Pittsburgh Steelers signed Troy Polamalu for more than 3 years and more than $ 30 million before 2012 .
text_B: On September 10 , 2011 , the Pittsburgh Steelers signed Polamalu to a four-year , $ 36.4 million contract extension that includes $ 10.55 million guaranteed .
SUPPORTS.