Anchor: The price index (weighted price) for basic mail in 1996 was 39.
Entailed: Weighted price, also known as the price index, was 39 for basic mail in 1996.
Contradiction: There was no price index back in 199y.
Contradiction: There is no doubt about the person's ability.
Contradiction: A boy is sitting in a stroller.
Contradiction: Three children walk in front of a woman.
Contradiction: Two women are walking.