fokus[12], kubus[10],
kois[8], ufos[8], obis[7], sufi[7], obus[7],
buk[8], koi[7], kos[7], ufo[7], bio[6], obi[6], fis[6], ski[6], bis[5], bus[5], sou[4], uso[4],
ob[5], bi[4], os[3], so[3], si[2], ui[2],
