How to rack a pool table<br>Start off with the 1-ball at the front of the rack. This is also called the " apex " of the rack Make sure that the 8-ball is in the center of the rack. The center of the rack is the middle of the triangle.
The 7-ball goes behind the 8-ball, and the 6-ball goes to the right of the 7-ball.
( z1 and :op ( z2 go :ARG1 ( z3 ball :ord ( z4 ordinal-entity :value 7 ) ) :ARG4 ( z5 behind :op ( z6 ball :ord ( z7 ordinal-entity :value 8 ) ) ) ) :op ( z8 go :ARG1 ( z9 ball :ord ( z10 ordinal-entity :value 6 ) ) :ARG4 ( z11 right :ARG2 z3 ) ) )