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", , or "U" (for "universal set").

Based on the paragraph above can we conclude that "There is more than one type of label."?
Yes