2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42644The group classification of exotic pentaquarks involving four standard quarks and a single antiquark to produce pentaquarks of strangeness +1 is outlined.8 pages, 3 figures, Latex, uses iopart, primarily of pedagogical interest Typos corrected and references updated and new references added. Minor text changesHigh Energy Physics - Phenomenologytext