Premise: A lone construction worker, in a yellow safety vest, blue shirt and white hard hat, standing on top of a construction plank, a steel crane standing nearby.

Hypothesis: A naked construction worker stands atop a building.
Relation: contradiction

Hypothesis: A construction worker is standing near a crane.
Relation: entailment

Hypothesis: A worker is standing on top of a plank because he dropped his ladder.
Relation: neutral