TASK DEFINITION: In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 
PROBLEM: make a disinfectant

SOLUTION: mix water, liquid soap, and tea tree oil in a spray bottle

PROBLEM: buttermilk substitution

SOLUTION: add vinegar or lemon juice to an equal amount of milk. let stand.

PROBLEM: How do you scrape coralline algae off the glass of your reef tank?

SOLUTION:
The easiest way to scrape stubborn coralline off your glass is with a credit card and a Mr. Clean Magic Eraser. This also minimizes the risk of scratching the glass or acrylic.