How to do an underhand serve<br>Get your feet into position. Stand with your non-dominant foot in front with your toes facing forward. Your dominant foot should be in the back with toes pointed slightly out.
A server using the correct dominant foot behind stance is labeled a a dominatrix. 
( z1 label :ARG1 ( z2 server :ARG0-of ( z3 use :ARG1 ( z4 stand :ARG0 z2 :ARG1 ( z5 behind ) :ARG2 ( z6 foot :ARG1-of ( z7 dominate ) ) :ARG1-of ( z8 correct ) ) ) ) :ARG2 ( z9 dominatrix ) )