With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: He officially retired from Earlham College, together with his wife Caroline Higgins in 2007, but retained the title of Research Professor of Philosophy.
text_B: He officially retired from Earlham College, together with his wife Caroline Higgins in 2008, but retained the title of Research Professor of Philosophy.
contradiction.