<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: first-time director joão pedro rodrigues ' unwillingness to define his hero 's background or motivations becomes more and more frustrating as the film goes on .  [/INST]
Sentiment: negative </s>