Anchor: Everyone seems to congregate around the lake's edge, where feeding the ducks and swans is a popular pastime.
Entailed: There are people at the lake's edge who are feeding the ducks.
Contradiction: It is prohibited to feed the ducks and the swans an the lake.
Contradiction: A man works at his desk.
Contradiction: Person in white shirt selling refreshments outside on a kiosk.
Contradiction: Four boys are shooting guns at each other.
Contradiction: Two girls wearing black shirts.