Input question: What fruit has varieties called 'Duncan' and 'Marsh'?

Output answer: grapefruit

Input question: Chinese Restaurant Syndrome, a collection of symptoms caused in some people after eating Chinese food, is said to be caused by which food additive?

Output answer: monosodium glutamate msg

Input question: Which river is Hamburg on?

Output answer: elbe

Input question: What type of eggs does Sam-I-Am want you to eat?

Output answer:
green eggs