With no explanation, label text_A→text_B with either "entailment" or "not-entailment".
text_A: Ash, a middle school kid, really wanted a new skateboard. He decided to start mowing lawns in the neighborhood for cash. By the end of the summer he had saved up quite a bit. Ash went and bought the perfect board. Ash felt good about what he had accomplished.
text_B: Ash mowed lawns all summer ends after he had saved up quite a bit
not-entailment.