Use reasoning to lead to the answer of the following question:
Premise: "Two blond girls reading books in a bookstore."\nHypothesis: "The girls are studying for an exam."\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
Girls reading books in a bookstore are not necessarily studying for an exam.

.

So, the final answer is it is not possible to tell