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. 
--------
Question: how to keep black fabrics black

Answer: add 2 cups brewed coffee or tea to the rinse cycle.


Question: To make a hamburger,

Answer: grill the beef patty and place it between 2 buns with your desired condiments.


Question: What is the best paint for stencils?

Answer:
Acrylic paint or latex paint also work with stencils, adhering to wood, walls and furniture alike. Both inexpensive craft acrylics or artist acrylics can be used. Oil paint, though, is not ideal for stenciling.