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

Sentence: the byplay and bickering between the now spy-savvy siblings , carmen ( vega ) and juni ( sabara ) cortez , anchor the film in a very real and amusing give-and-take . 
Sentiment: [/INST] positive </s>