Instruct: Given a premise, retrieve hypotheses that are 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.
Find a wall without sharp things.
the man needed help because he hurt his back
your left leg must be behind you
Roll around on the floor and then raise your legs to the ceiling.
When the man bent over he hurt his back.
Removing the bar prior to Pole Vaulting will restrict your space.
Put your face on the backbone.
Arrange your tools on a dirty sloped surface. 
Stay far from the bush.
Arrange your tools on a dirty bumpy surface.
A successful pole vaulter must not touch the bar.
Arrange your tools on a dirty flat surface.
Old people need to do backbend exercises
 Look for a place with good ventilation where burns and spills do matter. 
it is impossible to see the remaining wall
Backbends are important stretches 
you want to stand to the rear pole
you should not touch it with your bare hands
It's best not to use a calm spot.
Do not do any breathing exercises before you begin.
A beach with waves that are 1 ft high and with no large rocks, boats, or fishing equipment is good for boogie boarding
The rock was placed on top of a piece of furniture. 
Safety is difficult when doing stretches 
It’s hard to find a good place to do a back bend 
Doing a backbend is easy 