nnnn nnos nnss non- nonn nono nons noo- noon nooo noop noos nops nos- noss nosy noyo noys npss npsy nsos nsps nsso nssp nsss nyny nyon nyss onno onon onos onoy onso onys oons oooo ooos oops opo- opon opos oppo opps oppy opsy osno osny osoo osos osso ossy osyp oyns oyon oyss pnon pnpo pnpp pono ponp pons pony poon poop poos pop- popo popp pops popy posn poso poss posy poyn poyo poys ppos pppn pppo pppp ppps ppss pson psos pspp psps psso psy- psys pyn- pyo- pyon pyos pypy pyss 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 spns spon spoo spop spos spoy spps spso spsp spss spy- spys ssns ssop sspo ssps ssss syn- syns syny syon sypo syso syss ynon yono yons yoon yoop yopo yopy yoso yoyn yoyo ysnp yson ysop yyyy