<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: an operatic , sprawling picture that 's entertainingly acted , magnificently shot and gripping enough to sustain most of its 170-minute length .  [/INST]
Sentiment: positive </s>