Anchor: A female and two male musicians play instruments on a stage containing additional instruments.
Entailed: Two men and a woman perform with their instruments onstage.
Contradiction: A marching band plays their instruments.
Contradiction: The girl is inside sitting on the couch.
Contradiction: Two girls sweep the floor with a dustpan and broom.
Contradiction: She had no trouble speaking coherently. 
Contradiction: A music band is performing.