iiii iiio iiis iioi iioo iiop iios iirs iisi iisp iisr ilio ilir ilis ill- illi illo illp ills iloo ilos ilpr ioii ioio iolo iooi iooo ioos iopl iops iori iors ioso ipil iplo ipop ipos ippo ippr ipri ipsi ipso ipsp ipss iri- iril irio irip iris irop irps irri irrs irsp isil isis isls iso- isol isop isor isos ispr isps isri isrp issi isso issp issr isss 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 llll lloo llps loir lois loli loll lolo lols lool loop loor loos lopi lopp lops lori loro lors losi loso losp loss lppl lprp lpss lroi lrps lrrr ls-r lspl lspr lsso lssp lssr 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 orlo oro- oror oros orpi orps orri orro orrs orsi orso osii osip osis osli oslo osoi osoo osor osos osro ossi osso piip pil- pili pill pilo pils pipi pipo pipp pips piri pirl piro pirr pirs pisi piso piss plio plip plis ploo plop plos plpp plri plsi plss poil poio pois 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 prlr prls pro- prol proo prop pros 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 rlls roil roio roir rois roll rolo rolp rooi rool roop roor roos ropo rops rori roro rosi roso rosp ross rpii rpls rpos rpps rrrr rrsp rsis rslp rsos rspo rsps rssl s-ii s-os sil- sili sill silo sils siol siop sior sios sipi sipo sipp sips siri siro sirp sirr sirs sisi siss 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 spio spip spir spis splo splp splr spls spoo spop spor spos spps spri spro sprs spso spsp spss sris sros srps srsp ssis sslp ssop sspl sspo ssps ssri ssrl ssrs sssi ssss