Problem: The rock was more special than the stone because the

My choice: stone was from a normal area on the mountain.

Problem: The pulse of Sarah was slower than the one of Megan because

My choice: Megan was exercising.

Problem: Filling water balloons was fun for Jennifer but not for Sarah because

My choice: Sarah had a serious personality .

Problem: Patricia asked Jennifer how to vacuum the leather couch because

My choice:
Patricia had never owned one before.