Premise: "A child opening a birthday card at a party."\nBased on this premise, can we conclude that the hypothesis "A child's birthday party." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's think step by step.
it is not possible to tell
The child could be opening a card at a party for someone else and just his birthday party.

.

Therefore, the answer is it is not possible to tell