PYOGENESIS

en es go in is ne no oe oi on op os oy pe pi si so ye yo

ego eng ens eon ess eye gee gen gey gie gin gip gos goy gyp ins ion nee neg nip nog nos oes one ons ope ops ose pee peg pen pes pie pig pin pis poi psi pye see seg sei sen sin sip sis son sop sos soy spy syn yen yep yes yin yip yon

egis egos engs eons epos eses esne espy eyen eyes eyne gees gene gens gien gies gins gips goes gone goys gyps ions neep negs ness nips noes nogs nope nose nosy ogee ones open opes oses oyes peen pees pegs pein pens peon peso pies pigs pine ping pins piny pion piso piss pogy pois pone pong pons pony pose posy psis pyes pyin seen seep sees sego segs seis sene sign sine sing sins sipe sips snip snog snye sone song sons sops soys spin syne yens yeps yins yipe yips yogi yoni