Goal and options: How to know when to water my apple tree?
output answer: On a young sapling, to two years, twice a week no matter what. On mature trees, check the soil and when it's dry down to 8 inches, then water, and water deeply to promote deep roots. That way you will get rewarded with a prolific harvest in the fall.

Goal and options: Bring sauce to dinner party.
output answer: Keep warm in thermos.

Goal and options: To make riding a bike easier for first-timers,
output answer:
install training wheels onto the back wheel.