How to do a valdez<br>Sit upright with your left leg extended in front of you, and your right leg standing bent. Point your left toe straight ahead. You should feel the muscles in your left leg tighten as you stretch your toes.
When performing a valdez you should feel the muscles in your left leg tighten as you stretch your toes. 
( z1 recommend :ARG1 ( z2 feel :ARG0 ( z3 you ) :ARG1 ( z4 tighten :ARG1 ( z5 muscle :part-of ( z6 leg :part-of z3 :ARG1-of ( z7 left ) ) ) :time ( z8 stretch :ARG0 z3 :ARG1 ( z9 toe :part-of z3 ) ) ) ) :time ( z10 perform :ARG0 z3 :ARG1 ( z11 valley ) ) )