With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: The teaching ban was lifted in 1951 and Heidegger was granted "emeritus" status in 1953, but he was never allowed to resume his philosophy chair.
text_B: The teaching ban was lifted in 1951 and Heidegger was granted "emeritus" status in 1953, but he was sometimes allowed to resume his philosophy chair.
contradiction.