Anchor: 3 safety jacket clad Construction workers appear to be poking something interesting with their shovels.
Entailed: The construction workers are looking at something interesting.
Contradiction: Some construction workers are falling from a tower.
Contradiction: None of the construction workers have shovels.
Contradiction: The construction workers are using a pick axes to poke each other.
Contradiction: 3 construction workers on their lunch break.
Contradiction: safety workers fly over the clouds