Anchor: Men in yellow jackets at a street fair.
Entailed: There are men at the street fair.
Contradiction: There are no people at the street fair.
Contradiction: I have never heard of the defense systems group.  
Contradiction: Experienced lawyers may require incentives to remain in some positions.
Contradiction: There is a group of dogs playing.
Contradiction: They had claimed that the man lied about his plans to travel.