Groups made up of a specific number of members (whether people or otherwise) are referred to idiomatically by using Sonme' ("set, group, party") preceded by the number, so wej Sonme' is "group of three, party of three, trio, triplet," loS Sonme' is "quartet, quadruplet," and so on. cha' Sonme' ("group of two, duo") could mean twins, but SenDeqpu' is far more common.