With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Warner was the Democratic nominee for Governor of Arizona in 1986, but was defeated by then-State Senator Evan Mecham, who would go on to be impeached.
text_B: Warner was the Democratic nominee for Governor of Arizona in 1987, but was defeated by then-State Senator Evan Mecham, who would go on to be impeached.
contradiction.