Anchor: Two guys on guitar and one guy on the drums are performing in a band.
Entailed: Two guys are on a guitar.
Contradiction: Two men are sleep in the woods.
Contradiction: These cases can sit for years before an attorney works on them. 
Contradiction: Targets are identified for senior executives to meet based on their levels of performance
Contradiction: A family is yelling at each at each other at the beach.
Contradiction: There is a possibility that one suspect escaped to Iraq.