UPSILONISM

in is li lo mi mo mu no nu oi om on op os pi si so um un up us

imp ins ion ism lin lip lis lop lum mil mis mol mon mop mos mun mus nil nim nip nom nos nus oil oms ons ops pin pis piu poi pol pom psi pul pun pus sim sin sip sis sol som son sop sos sou sum sun sup ump uns upo ups

impi imps ions isms limn limo limp lino lins lion lips lisp loin lops loss loup lump lums milo mils mini mips miso miss moil mols mons mops moss muni muns muon muss nils nims nips nisi noil noms nous oils onus opus pili pins pion piso piss plum plus pois pols poms pons psis puli puls puns puss silo simp sims sins sips slim slip slop slum snip soil soli sols soms sons sops soul soup sous spin spun sumo sump sums suns sups umps upon