With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: U.S. Treasury securities yield curve remained at a regular level for at least the sixth trading session of the preceding seven .
text_B: Oil prices fell by 11 % , while the yields on 10-year and 30-year U.S. Treasury securities fell to 0.93 % and 1.52 % respectively ( while their yield curve remained normal ) .
NOT ENOUGH INFO.