Goal and options: How do I shovel snow and not hurt my back?

OPTIONS:
- Bend your knees and lift with your legs. As you lift the snow, keep the shovel blade close to you, to reduce back strain. Switch off between snow shoveling right-handed and left-handed, so that you're working different muscles.
- Bend your knees and lift with your legs. As you lift the snow, keep the shovel blade away from you, to reduce back strain. Switch off between snow shoveling right-handed and left-handed, so that you're working different muscles.
output answer: Bend your knees and lift with your legs. As you lift the snow, keep the shovel blade close to you, to reduce back strain. Switch off between snow shoveling right-handed and left-handed, so that you're working different muscles.

Goal and options: To protect your feet from harm while walking outdoors,

OPTIONS:
- wear shoes on your feet.
- apply lotion to your feet.
output answer: wear shoes on your feet.

Goal and options: how do you preheat an oven?

OPTIONS:
- turn it on after you put the food in.
- turn it on to warm up before you put the food in.
output answer:
turn it on to warm up before you put the food in.