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.
A clear area on the wall is hard to find 
( z1 find :ARG1 ( z2 area :ARG1-of ( z3 clear ) :location ( z4 wall ) ) :ARG1-of ( z5 hard ) )