nnnn nnos nnss non- nonn nono nons noo- noon nooo noop noos nops nos- noss nosy noyo noys noyz npss npsy nsos nsps nsso nssp nsss nyny nyon nyss nzpp onno onon onos onoy onoz onso onys onzo onzy oons oooo ooos oops oozy opo- opon opos oppo opps oppy opsy osno osny osoo osos osso ossy osyp oyns oyon oyss ozon ozzy pnon pnpo pnpp pono ponp pons pony poon poop poos pop- popo popp pops popy posn poso poss posy poyn poyo poys pozo ppos pppn pppo pppp ppps ppss pson psos pspp psps psso psy- psys pyn- pyo- pyon pyos pypy pyss pyzy s-os snns snoo snop snos snpo snpp snsy snys son- sono sons sony soon soop soos sooy sopo sopp sops sopy soso soss soyo soys soz- spns spon spoo spop spos spoy spps spso spsp spss spy- spys ssns ssop sspo ssps ssss syn- syns syny syon sypo syso syss szss ynon yono yons yoon yoop yooz yopo yopy yoso yoyn yoyo yozo ysnp yson ysop yyyy zon- zons zony zoo- zoon zoop zoos zopy zoso zoss zozo zsss zypp zzzs zzzz