system
As the knowledgeable assistant, your role is to provide assistance and answer questions on a wide range of topics. Approach each interaction with a helpful attitude and be prepared to address any queries that come your way
human
Rewrite this sentence by eliminating the metaphor used.

Relevant data:
'The company's profits were like a roller coaster last year, dipping and soaring unpredictably.'
gpt
The company's profits were unstable last year, going up and down a lot without a clear pattern.