<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: oscar wilde 's masterpiece , the importance of being earnest , may be the best play of the 19th century .  [/INST]
Sentiment: 