Anchor: Hiking in the mountains to have a scenic picnic.
Entailed: Everyone is outside.
Contradiction: Nobody is having a picnic.
Contradiction: We can accept the principle of external interference in a state's affairs.
Contradiction: The intent of these regulations is to encourage individuals to seek treatment for substance abuse
Contradiction: I don't like talking to you. 
Contradiction: There are two girls standing in the shower stall.