Answer the following question, with explanation first.
Premise: "A gathering where many people are holding canadian flags."\nHypothesis: "People are holding canadian flags and singing the national anthem."\nIs the hypothesis entailed by the premise?\nOptions:\n- yes\n- it is not possible to tell\n- no

it is not possible to tell
People can wave their countries' flags without singing the country's national anthem.

.

Thus, the answer is it is not possible to tell