Your request is a little sketchy but here is a place to begin. Estimate how the total weight you want to raise. Purchase a rope rated for at least twice what you estimated. You will a need a frame and attach hardware capable of carrying twice the estimate too.
Now it gets fairly easy:
1. two single eye pulleys with 100 pounds tension pulled 1 foot will raise 100 pounds 1 foot.
2. two double eye pulleys (2 loops of rope) with 100 pounds of tension pulled 1 foot will raise 200 lbs 6 inches.
3. two triple eye pulleys (3 loops of rope) with 100 pounds of tension pulled 1 foot will raise 300 lbs 4 inches.
You should see the relationship.
Please for her safety don't exceed the rating of any of the materials.

I've invested time and research in this solution. Please invest some of your own and rate my answer. GL
Lou