Premise: "Men are working on scaffolding outside of a building while other men watch."\nHypothesis: "The men work in construction."\nDo we know that the hypothesis entailed by the premise?
Let's think step by step below.
it is not possible to tell
The fact that men are working on building scaffolding doesn't imply they work in construction.

.

So, the answer is it is not possible to tell