Goal and options: To blow out candles.
output answer: Breath out in a dense stream of air aimed at the candle.

Goal and options: To cook a steak medium,
output answer: cook the steak until there is a warm pink interior.

Goal and options: How to do an Awesome Color Experiment using a mixture to break down a colored marker.
output answer:
To break down a colored marker using a mixture, first take a glass of water and a few teaspoons of alcohol.