-ous nnnn nnos nnss non- nonn nono nons nonu noo- noon nooo noor noos nor- norn noro norr nors nos- noss nosu noun nour nous nron nsnr nsos nsou nsso nssr nsss nunn nuno nuns nuon nurn nurr nurs nuru nuss nusu onno onon onor onos onso onur onus oons oooo ooos oous orno orns oro- oron oror oros orro orrs orso orsu orus osno osnr osoo osor osos osro osso ossu osun oun- our- ourn ouro ours ouu- rono rons roon roor roos roro roru roso ross roun rous rrrr rrun rsnn rsno rsnr rsos runn runo runs ruro rurs ruru ruso russ rusu ruun s-os snns snoo snor snos snrs snur snus son- sono sons sonu soon soor soos sorn soro sorr sors soru soso soss soun sour sous srnn srno sros ssns ssrs ssss sun- sunn suno suns sunu suor suos sur- surn suro surr surs suru sus- suso suss susu suus unno unns unon unos unro unrs uns- unso unus uor- urns uro- uroo urso urss ursu urun urur urus usno usnr usnu usos ussr usss ussu usun usus uuno uuuu