Anchor: Several people standing and sitting outside on the sidewalk.
Entailed: Some people stood outside while others preferred to sit on the sidewalk.
Contradiction: No one is currently outside on the sidewalk.
Contradiction: The dog is swimming in the ocean.
Contradiction: Buffalo would have been there this year if there had not been a ball tumble.
Contradiction: Two boys are sitting on the steps.
Contradiction: She's not going to answer your question correctly.