idir idis idno idon idos idps idrf idro idsf idso idss idtp idts ifid ifis ifit ifni ifno ifnr ifns ifor ifpo ifps ifrf ifri ifso ifsp iftn ifto iiii iiio iiis iiit iino iioi iioo iiop iios iipf iirs iisd iisi iisp iisr iist iitr iitt ind- indi indo inds infi info infp infs inid inis init inni inno innr inns ino- inoi inon inor inos inot inp- inpi inpp inpt inri inro inrs inso insp inss inst intd inti intn into intp intr ints iod- iodd iodo ioii ioio ioit ioni ionn iono ions ioof iooi iooo ioos iops iori iors ioso iotf ioto ipdi ipid ipin ipod ipop ipos ippf ippo ippr ipri ipsi ipso ipsp ipss ipto ipts irdo irdp irds iri- irid irin irio irip iris irod iron irop irps irri irrs irsf irsp irtf irti irtp irts isdn isds isfp isin isis isit isno isnt iso- isof ison isop isor isos ispf ispr isps isri isrp issf issi isso issp issr isss istd isti isto istp istr ists itdo itif itin itis itno itof itoi iton itoo itor itos itrf itri itrs itsf itsi itso itsp ittf itto n-ii nddo ndfi ndnp ndnt ndop ndor ndos ndpd ndpr ndps ndrf ndri ndsf ndsi ndss nfff nfip nfon nfps nfrs nfsr nfto nidd nidi nido nids niff nift niip niir niit nind nini nino nins nion nioo nios nipr nips nipt niro nirs nirt nisd nisi niso nisp niss nist nitf niti nito nitr nits nnit nnnn nnos nnot nnpi nnpr nnss nntn nodi nodo nods nofi noid noif noin noio noir nois noit non- noni nonn nono nons nont noo- noon nooo noop noor noos noot nops nor- nord norf nori norn noro norr nors nort nos- noss nost not- noti noto nots nott npif npin nppd npri nprt npss nptn nrds nron nrpn nrps nrrd nrsp nrts nsdf nsds nsdt nsfs nsin nsis nsnr nsof nsos nspi nsps nsrd nssf nsso nssp nssr nsss nstd nstp nsts ntds ntfp ntfs ntis ntnd ntof ntop ntpd ntsf ntss ntto nttr oddd oddi odds odin odio odir odis odon odoo odop odor odos odot odrp odso odts ofdr off- offo offr offs ofid ofit ofno ofor ofst oftp oido oids oiii oins oint oion oios oirt oisd oist oiti ondi ondo onir onis onit onni onno onod onon onor onos onpt onso onst ont- onti onto oodi ooff oofs ooid oons oont oooo ooos oops oord oort oosi oost ootp oots opds opii opin opio opis opit opo- opon opor opos oppi oppo opps opsi opti optn opto opts ordn ordo ords orff orfi orfs ori- orid orif orin orio oris orit orni orno orns oro- orof oron oror oros orot orpi orps orri orro orrs orsi orso orto orts osdi osii osin osip osis osno osnr osoi osoo osor osos osrd osro ossd ossi osso osti ostr osts otfp otif otin otis otit oto- otof oton otoo otor otos otpp otro otrs otso otti otto otts pdfs pdns pdos pdpn pdpr pdrs pdsd pdss pfff pffr pfft pfis pfit pfps pido pids piff pifs piip pind pini pinn pino pinp pins pint pion piot pipi pipo pipp pips piri pirn piro pirr pirs pisd pisi piso piss pist pitf piti pito pitr pits pitt pnin pnon pnot pnpo pnpp pnro pntd pntr pod- podd podi podo pods poff pofi poid poin poio pois pond poni pono ponp pons pont pood poof poon poop poor poos poot pop- popi popo popp pops popt pori porn poro porr pors port posi posn poso poss post potd potf poti poto pots pott ppds ppid ppif ppod ppos pppd pppn pppo pppp ppps pprf ppsf ppss pptn ppts pptt prfs pri- prid prif prii prin pris prnd prnp pro- prod prof pron proo prop pros prot prpd prps prrd prri prrs prsd prsi prso prss prti prtp prtr psdi psdp psdr psds psfs psid psip psis psni psnr psoi pson psos pspi pspp pspr psps psrd psrp psso psst psts ptop ptpd ptrd ptrf ptsd rdio rdos rdso rfdi rfds rfid ridd ridi rido rids riff rifs rift riif riin riis rind rinf rinn rino rion rios riot ripd ripi ripp ripr rips ript riri rirs risd risi riso risp riss rist riti rito rits ritt rndf rndp rnds rnin rnnt rnod rnot rnsp rntd rntp rodd rodi rodo rods roff rofo roid roif roin roio roir rois roit rond roni rono rons ront rood roof rooi roon roop roor roos root ropo rops rori roro rort rosi roso rosp ross rost roti rotn roto rotr rots rott rpdp rpii rpof rpon rpos rppn rpps rptd rptn rpts rrif rrrr rrsp rsdd rsds rsid rsis rsnn rsno rsnr rsos rspo rsps rstp rsts rtdt rtnd rtns rtps rtss rttp rtts s-ii s-os sdds sdif sdio sdot sdpr sdps sdrs sdsf sdss sfio sfnt sfor sfos sfpd sfro sfss sftp sfts sidd sidi sido sidr sids siff sifo sifr sift siit sind sini sinn sino sinp sins sint siod sion siop sior sios siot sipi sipo sipp sips sipt sirf siri siro sirp sirr sirs sirt sisd sisi siss sist sit- sitd siti sitn sito sits sitt snid snip snir snit snns snod snoo snop snor snos snot snpo snpp snrs snsd sntr sodd sodo sods sofi sofo soft soif soin soir sois soit son- sond soni sono sons sont sood soof soon soop soor soos soot sopd sopi sopo sopp sops sord sori sorn soro sorr sors sort sosi soso soss sost sotn soto sotp sots spdf spdp spdr spdt spfs spin spio spip spir spis spit spns spod spon spoo spop spor spos spot sppd sppf spps sprd spri spro sprs spsd spso spsp spss spst spto sptr spts srfi sris srni srnn srno sros srps srpt srsd srsp srtp srtr ssdd ssdf ssdp ssfp ssid ssin ssis ssit ssns ssop ssot sspf sspo ssps sspt ssri ssrs sssf sssi ssss sstd sstp ssts stds stfn stid