iiii iiio iiis iioi iioo iiop iios iirs iisi iisp iisr ilio ilir ilis ill- illi illo illp ills iloo ilos ilpr ilxx ioii ioio iolo iooi iooo ioos iopl iops iori iors ioso ipil ipix iplo ipop ipos ippo ippr ipri ipsi ipso ipsp ipss iri- iril irio irip iris irix irop irps irri irrs irsp isil isis isls iso- isol isop isor isos ispr isps isri isrp issi isso issp issr isss ixil ixos ixxi liii liir liis lili lill lilo lils lio- lior lios lip- lipi lipl lipo lipp lips liri lirl liro lirp lirr lirs lisi liso lisp liss lixi llll lloo llps loir lois loix loli loll lolo lols lool loop loor loos lopi lopp lops lori loro lors losi loso losp loss lox- loxo lppl lprp lpss lroi lrps lrrr ls-r lspl lspr lsso lssp lssr lxii lxis lxxi lxxx oiii oils oios olio olis olli ollo olor olos olsi oolo oooo ooos oops oosi opii opio opis opls opo- opor opos oppi oppo opps opsi ori- oril orio oris orix orlo oro- oror oros orpi orps orri orro orrs orsi orso osii osip osis osli oslo osoi osoo osor osos osro ossi osso oxi- oxis oxo- oxos oxox oxsi oxxo piip pil- pili pill pilo pils pipi pipo pipp pips piri pirl piro pirr pirs pisi piso piss pixl pixo pixx plio plip plis ploo plop plos plpp plri plsi plss poil poio pois poix poli poll polo pols pool poop poor poos pop- popi popo popp pops pori poro porr pors posi poso poss ppli pplo ppos pppo pppp ppps ppss pri- prii pris prix prlr prls pro- prol proo prop pros prox prps prri prrs prsi prsl prso prss psil psip psis psoi psol psos pspi pspp pspr psps psrp psso riis rill rilo rilp riol rios ripi ripl ripp ripr rips riri rirs risi riso risp riss rixo rlls roil roio roir rois roll rolo rolp rooi rool roop roor roos roox ropo rops rori roro rosi roso rosp ross roxo rpii rpix rpls rpos rpps rrrr rrsp rsis rslp rsos rspo rsps rssl s-ii s-os sil- sili sill silo sils siol siop sior sios siox sipi sipo sipp sips siri siro sirp sirr sirs sisi siss sixo sixx sl-i slip slir sllp sloo slop slos slpi slpp slps slrp slrs soil soir sois soli soll solo solp solr sols sool soop soor soos sopi sopo sopp sops sori soro sorr sors sosi soso soss soxs spio spip spir spis spix splo splp splr spls spoo spop spor spos spox spps spri spro sprs spso spsp spss sris sros srps srpx srsp ssis sslp ssop sspl sspo ssps sspx ssri ssrl ssrs sssi ssss xiii xil- xili xill xilp xisi xixi xlii xlix xlox xois xolo xoro xorp xors xosl xoxo xsil xxii xxix xxxi xxxo xxxx