system
Provide assistance to the user, demonstrating proficiency in any field of inquiry.
human
Create a clearer sentence from the following by revising the pronoun: Mary left the store and found her bike wasn't where she parked it. She had to call for a ride instead.

"Mary went grocery shopping but couldn't find her bike upon leaving. She had to call someone for a ride instead."
gpt
After shopping for groceries, Mary was unable to find her bike in the parking lot. As a result, she had to call for a ride home.