Anchor: People are walking together on a street.
Entailed: People walking down a street.
Contradiction: A man walking by himself.
Contradiction: We have no knowledge of the incidents.
Contradiction: We bought a tract home in the early eighties just to get into the housing market, thinking that we'd move on, but the economy changed, and it looks like we're going to be living here for a while. 
Contradiction: The equipment is very expensive.
Contradiction: We'll eat upstairs.