<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: martin and barbara are complex characters -- sometimes tender , sometimes angry -- and the delicate performances by sven wollter and viveka seldahl make their hopes and frustrations vivid .  [/INST]
Sentiment: positive </s>