Task: clean grout
Assumptions:
Clean grout with baking soda.
Steps:
 Mix baking soda and water into a paste in a bowl.
Make use of a brush to spread the paste over the grout.
Mix vinegar and warm water in a spray bottle
Spray the grout with the vinegar mixture.
Allow the baking soda to rest for five minutes.
Scrub the grout with a brush.
Clean the floor.