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.
8-ball contains a z
( z1 contain :ARG0 ( z2 ball :quant 8 ) :ARG1 ( z3 thing ) )