In probability theory, the sample space of an experiment or random trial is the set of all possible outcomes or results of that experiment. A sample space is usually denoted using set notation, and the possible ordered outcomes are listed as elements in the set. It is common to refer to a sample space by the labels "S", Ω, or "U" (for "universal set").
Some trials can be random.
( z1 possible :ARG1 ( z2 random :domain ( z3 try :quant ( z4 some ) ) ) )