The conversation between human and AI assistant.
[|Human|] Analyze the sentiment of this sentence: I'm so excited for the weekend to start.
[|AI|] The sentiment of this sentence "I'm so excited for the weekend to start" is positive, as it expresses a feeling of excitement and eagerness for the upcoming weekend.
[|Human|] 
Analyze the sentiment of this sentence: I'm so excited for the weekend to start.