Anchor: players sitting in a stadium wearing red and black t-shirts sitting and listening to someone.
Entailed: A group of athletes in red and black listen intently.
Contradiction: A few football players lift weights together.
Contradiction: Mother and son go for a run.
Contradiction: I used some envelope glue to stick the pages together. 
Contradiction: The leather pants are white.
Contradiction: People are at the beach.