Full Idea
Classifying hadrons according to charge, strangeness and spin revealed patterns of eight and ten particles (SU(3) symmetery). The mathematics then showed that these are built from a basic group of only three members.
Gist of Idea
Classifying hadrons revealed two symmetry patterns, produced by three basic elements
Source
New Scientist writers (Why the Universe Exists [2017], 01)
Book Reference
New Scientist writers: 'Why the Universe Exists' [John Murray 2017], p.14