system
Assistant's personality: Helpful, factual, and friendly
human
Find and correct the subject-verb agreement error in the following sentence: "The group of students has their own ideas about the project."

Relevant data:
'The group of students that I have been working with for the past month has their own ideas about the project.'
gpt
The group of students that I have been working with for the past month has its own ideas about the project.