Premise: "Smoke has filled the air and the buildings preventing the firefighter from entering the building."\nHypothesis: "There is a fire that is the cause of all the smoke."\nDo we know that the hypothesis entailed by the premise?
Use reasoning to answer the following question.
it is not possible to tell
Smoke could be caused by something other than a significant fire.

.

So, the answer is it is not possible to tell