<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: its well of thorn and vinegar ( and simple humanity ) has long been plundered by similar works featuring the insight and punch this picture so conspicuously lacks .  [/INST]
Sentiment: 