-ous iiii iiio iiis iioi iioo iios iirs iisi iisr iisu ilio ilir ilis ill- illi illo ills iloo ilos ilus ioii ioio iolo iooi iooo ioos iori iors ioso iosu ious iri- iril irio iris irri irrs irul irus isil isis isls iso- isol isor isos isri issi isso issr isss issu isus iuiu iuss liii liir liis lili lill lilo lils lilu lio- lior lios liri lirl liro lirr lirs liru lisi liso liss lisu lius llll lloo loir lois loiu loli loll lolo lols lool loor loos lori loro lors losi loso loss loui loul lour lous louu lroi lrrr ls-r lsso lssr luis luli lull lulu luri lurs lusi luso luss oiii oils oios oisu olio olis olli ollo olor olos olsi olur oolo oooo ooos oosi oous ori- oril orio oris orlo orlu oro- oror oros orri orro orrs orsi orso orsu orus osii osis osli oslo osoi osoo osor osos osro ossi osso ossu osul ouii ouir ouis ouls oulu our- ouro ours ouu- riis rill rilo rilu riol rios riou riri rirs risi riso riss risu rius rlls roil roio roir rois roiu roll rolo rooi rool roor roos rori roro roru rosi roso ross roul rous rrrr rsis rsos rssl ruis rull rulo ruri ruro rurs ruru rusi ruso russ rusu s-ii s-os sil- sili sill silo sils silu siol sior sios siou siri siro sirr sirs siru sisi siss sisu siui sius sl-i slir sloo slos slrs slsu slur soil soir sois soli soll solo solr sols sool soor soos sori soro sorr sors soru sosi soso soss soul sour sous sris sros ssis ssri ssrl ssrs sssi ssss suio suir suis sul- suli sull sulo sulu suor suos sur- suri suro surr surs suru sus- susi suso suss susu suus uirr ulli ullo ullr ulo- ulos ulul ulus uor- uris uriu urls uro- urol uroo urri ursi urso urss ursu urur urus usis uslu usoi usos ussr usss ussu usui usul usus uulu uuri uusi uuuu