Anchor: A man has a guitar signed by someone.
Entailed: A guitar is signed
Contradiction: A woman has a guitar
Contradiction: I had not considered fighting back, it wasn't my style. 
Contradiction: Yes, I also work in the segregation department for the ones that mess up, I am an inside guard.
Contradiction: A man talks on his cellphone in front of the ocean.
Contradiction: A child has a meal.