Given the sentence "A man wearing a blue t-shirt is unsafely hanging an object from a high ceiling while standing on the railing of a lift." is it true that "A man hanging from the ceiling pretending to be a monkey."?
Let's think step by step below.
it is not possible to tell
Someone hanging from a ceiling may not necessarily be pretending to be a monkey.

.

Thus, the answer is it is not possible to tell