Goal and options: How to remove rust from a cast iron pan?
output answer: Cut a raw potato in half width wise, pour 2 tablespoons of salt in the pan and firmly scrub the rust with the potato until clean or the end of the potato gets slick then cut off and keep scrubbing. When the rust is gone rinse the pan, dry it and coat with 2 tablespoons of canola oil to season.

Goal and options: Build a sand castle.
output answer: Fill a bucket with sand and turn it upside down, then gently remove the bucket. Add decorations to simulate a castle.

Goal and options: Clean tires
output answer:
Pour water, scrape off caked on dirt. Use a steel wool to clean out crevices and narrow spaces.