Instruct: Given a premise, retrieve a hypothesis that is entailed by the premise.
Query: How to do a backbend against a wall<br>Find a good, clear spot. Find a wall space that is clear of any obstructions such as furniture, plants or sharp objects. It should have nothing that could injure you near it.
The space around the wall should be empty
Limbo can hurt your back.
You must always do backbends indoors
For your first few jumps, ensure the bar is firmly in place.
You should have a calm spot for boogie boarding.
A clear area on the wall is hard to find 
You can avoid an obstacle.
It is wrong to say you cannot lie your back on the floor.
Boogie boarding should be done away from large rocks
The man definitely didnt hurt his back.
Stay away from the bush.
The shelter must have walls.
In addition to having a wide stance, it's important to bend your knees. 
The only instructions listed are to be wary of uneven surfaces.
 Look for a place with bad ventilation where burns and spills won't matter. 
Tools should be arranged on an uneven surface.
Put your toes on the backbone.
Removing the bar prior to Pole Vaulting will restrict your space.
When the man bent over he hurt his back.
Stay far from the bush.
Arrange your tools on a dirty sloped surface. 
it is impossible to see the remaining wall
It’s hard to find a good place to do a back bend 
Backbends are important stretches 
Safety is difficult when doing stretches 