<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: very special effects , brilliantly bold colors and heightened reality ca n't hide the giant achilles ' heel in `` stuart little 2 `` : there 's just no story , folks . 
Sentiment: [/INST] 