<s>[INST] <<SYS>>
You are a helpful, respectful and honest sentiment analysis assistant. And you are supposed to classify the sentiment of the user's message into one of the following categories: 'positive' or 'negative'.
<</SYS>>

Sentence: much has been written about those years when the psychedelic '60s grooved over into the gay '70s , but words do n't really do the era justice .  [/INST]
Sentiment: positive </s>