The conversation between human and AI assistant.
[|Human|] Classify these fruits as "citrus" or "non citrus".
[|AI|] - Orange is a citrus fruit.
- Grapefruit is a citrus fruit.
- Apple is a non-citrus fruit.
- Banana is a non-citrus fruit.
[|Human|] 
Classify these fruits as "citrus" or "non citrus".