If "An outdoor sofa is being occupied by a sleepy teenager." does that mean that "A teenager is sitting on a sofa."?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's think step by step below.
yes
Sitting on a sofa is the typical way to occupy it; therefore one that is occupied by a teenager indicates that the teenager is sitting on it.

.

So, the answer is yes