Goal and options: How can you make yourself look more natural in a photo?
output answer: Forcing a smile doesn't work, instead laugh naturally, think of something funny, this translates better in a photo.

Goal and options: What powers a water rocket?
output answer: Water rockets are usually powered by pressure.

Goal and options: Make a medical pillow for extra back support.
output answer:
Buy a solid piece of foam.Cut it to fit in a pillow case.