Anchor: It sounded like the snuffling progress of an undine across the roof!
Entailed: It sounded like an undine was being snuffled on the roof. 
Contradiction: There was no sound coming from the roof. 
Contradiction: A groom is by himself on the beach
Contradiction: Company management has a duty to perform for its stakeholders.
Contradiction: Three woman hang sheets on a clothesline.
Contradiction: Two girls are wearing black clothes.