With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: In 1952 he was accepted into the corps de ballet Paris Opera Ballet, but in 1958 he had to join the military.
text_B: In 1953 he was accepted into the corps de ballet Paris Opera Ballet, but in 1958 he had to join the military.
contradiction.