With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Giganotosaurus is believed to be of the same size as the Tyrannosaurus .
text_B: Some researchers have found the animal to be larger than Tyrannosaurus , which has historically been considered the largest theropod , while others have found them to be equal in size , and the largest size estimates for Giganotosaurus exaggerated .
NOT ENOUGH INFO.