Goal and options: Why does sugar cause tooth decay?
output answer: It is not really the sugar that causes decay. Sugar however provides a friendly environment for bacteria that do eat away tooth enamel and introduce decay. If you do eat sugar, rinse afterward to make sure you are not contributing to a bacteria friendly environment.

Goal and options: To light up a full room with a small light,
output answer: hold the light towards the top of the room.

Goal and options: Plate
output answer:
Holds my food. spoon Stabs my food.