iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iitr iitt ioii ioio ioit iooi iooo ioos iori iors ioso ioto iri- irio iris irix iriy irri irrs irti irts isis isit iso- isor isos isri issi isso issr isss issy isti isto istr ists isty isys itis itoi itoo itor itos itri itrs itry itsi itso itsy itto itty ixos ixxi iyos oiii oios oirt oiry oist oiti oooo ooos oort oory oosi oost oots ooty ori- orio oris orit orix oro- oror oros orot oroy orri orro orrs orry orsi orso orsy orto orts orys oryx osii osis osoi osoo osor osos osro ossi osso ossy osti ostr osts osyt otis otit oto- otoo otor otos otoy otro otrs otry otso otti otto otts otyr oxi- oxis oxo- oxos oxox oxsi oxxo oxy- oyri oyss oyst riis rios riot riri rirs risi riso riss rist riti rito rits ritt rixo rixy riyo roio roir rois roit rooi roor roos root roox rori roro rort rory rosi roso ross rost rosy roti roto rotr rots rott roty roxo roxy roys royt rrrr rsis rsos rsts rtss rtts ryis ryot rysy rytt ryyt s-ii s-os siit sior sios siot siox siri siro sirr sirs sirt sisi siss sist sisy sit- siti sito sits sitt sity sixo sixt sixx siyi soir sois soit soor soos soot sooy sori soro sorr sors sort sory sosi soso soss sost soto sots soxs soyo soys soyt sris sros srtr ssis ssit ssot ssri ssrs sssi ssss ssts stio stir stis stit stix stoo stor stos stot stox stoy stri stro strs stry stsi stss sttr styr stys styx syis syro syrs syrt syry syso syss syst sytt syxt tiit tios tiri tiro tirr tirs tiry tisi tiso tiss tist titi tito tits titt tixt tiyi tiyo to-y tois toit toor toos toot tori toro torr tors tort torx tory tosi toso toss tost tosx tosy toti toto totr tots tott toty tox- toxi toxo toxs toxt toyo toys toyt tri- trio tris trit trix troi troo tros trot trox troy trsi trst trtr try- tryo trys tsis tsix tsoi tsos tsoy tssi tssr tsst tsts tsys ttoy ttss tttt ttys txii txtr tyir tyr- tyro tyrr tyss tyst tyti tyto tytt tyty tyxt xiii xisi xist xito xixi xois xoro xors xoxo xoyo xtro xtry xtsr xxii xxix xxxi xxxo xxxx xxxy xyr- xyst yirr yiss yist yiti yoit yoix yoot yori yoro yort yory yosi yoso yost yott yoyo ysii yyyy