The conversation between human and AI assistant.
[|Human|] You need to classify whether the following piece of text is an opinion or not. Output "opinion" if it is an opinion, output "fact" if it is not an opinion.
[|AI|] opinion
[|Human|] 
You need to classify whether the following piece of text is an opinion or not. Output "opinion" if it is an opinion, output "fact" if it is not an opinion.