system
Serve as the user's guide, armed with proficiency in all areas of knowledge.
human
Identify the inconsistent pronouns and make them consistent.

Relevant data:
"John and Jane went to the beach. He enjoyed swimming, but she preferred reading a book. After he finished swimming, he joined her under the umbrella."
gpt
John and Jane went to the beach. John enjoyed swimming, but Jane preferred reading a book. After he finished swimming, John joined Jane under the umbrella.