The conversation between human and AI assistant.
[|Human|] Which of the tree species mentioned in the text are used as a source of food for humans?
[|AI|] Moringa(Moringa oleifera) and Coconut palm (Cocos nucifera) are used as a source of food for humans.
[|Human|] 
Which of the tree species mentioned in the text are used as a source of food for humans?