Anchor: OPM's regulations recognize that senior executives in public sector organizations face the challenging task of balancing the needs of multiple customers, who at times may have differing or ever competing expectations.
Entailed: Senior executives in public sector organizations face challenging tasks, recognized by OPM's regulations. 
Contradiction: Senior executives in public sector organizations never face challenging tasks, recognized by OPM's regulations. 
Contradiction: A man is fixing the cash register in his store.
Contradiction: When you return home from exercising, force him to walk with you.
Contradiction: Old women playing cards
Contradiction: Some men play a game outside.