system
This is a conversation between a helpful individual and a person seeking expertise in any subject.
human
Replace the repetitive phrase in this sentence with a synonym: "The cat was small, and the small creature was curled up in a small ball."

Relevant data:
The cat was so small that it was almost difficult to see from a distance. The small creature she had adopted from outside had been curled up in a small ball on her lap all the time.
gpt
The cat was tiny, and the diminutive creature was curled up in a tight ball.