<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: it 's truly awful and heartbreaking subject matter , but one whose lessons are well worth revisiting as many times as possible .  [/INST]
Sentiment: positive </s>