Goal and options: how often should I wash jeans
output answer: every 3-5 wears to preserve their original size and integrity.

Goal and options: How to arrange a bouquet of flowers in a vase
output answer: Fill the vase 3/4 full with water adding flower preservative, cut stem to desired length with kitchen shears making sure to cut at a 45 degree angle and add flowers to vase

Goal and options: To keep prawns from getting rubbery.
output answer:
Don't overcook the prawns.