-ing dddd ddps ddss ddts dgsi dgsn didi dids didu digg digi digs diii diis din- ding dini dinn dins dint dinu dipn dipp dips dipt dipu dird dirr dirs dirt dis- disd disg disi disp diss dist diti dits ditt dius dnis dntp dntt dnus dnut dpdt dpin dpni dprg dpsd dpst dpsu dpts drgs drin drip drit drrs drsp drug drui drup drus drut druu dsdp dsdr dsgn dsip dsng dsps dspt dsri dsrp dsrr dssi dssn dssp dsst dstn dsts dtdp dtng dtss dttp dudd duds dudu dugs dugu duid duin duir duis duit dung dunn duns dunt durg duri durn durt duru dusi dust dutp duts duur duut gdps gdrt gggg ggrn ggss gidd gidi gids gigg gigi gign gigs giis ging gini ginn gins ginu gipi gipp gips gird girg giri girn girr girs girt giru gisd giss gist gits giur gius gnin gnip gnit gnps gnrr gnti gntp gnus gpgp gpip gprd gprp gprs gpsd gpsg gpsi gpss grds grid grig grin grip gris grit grni grps grrr grrs grss grug grui grun grur grus grut gsds gsis gspt gstr gsur gtip gudi gudu gugg gugi gugu guid guin guis gund gung gunn guns gunt gups gurd gurg guri gurn gurr gurs gurt guru gusd guss gust guti guts gutt gutu guus idid idig idin idir idis idps idss idtp idts idun idus iggs igis igni igns ignu igri igsp igus iiii iiis iiit iirs iisd iisi iisp iisr iist iisu iitr iitt ind- indi inds indu ings inid inig inis init inni innr inns innu inp- inpi inpp inpt inri inrs insp inss inst insu intd intg inti intn intp intr ints intu inui inun inup inus ipdi ipid ipin ippr ipri ipsi ipsp ipss ipts ipur ipus iput irdp irds irgs iri- irid irig irin irip iris irps irri irrs irsg irsp irti irtp irts irun irus isdn isds isin isis isit isnt ispr isps isrg isri isrp issi issp issr isss issu istd isti istp istr ists isup isus itgs itin itis itri itrs itsi itsp itsu itup itur iuds iugs iuiu iupp iusd iuss iust n-ii n-up ndnp ndnt ndpd ndpr ndps ndri ndsi ndss ndut ngns ngri ngsn ngtn ngts ngur nguu nidd nidi nids nigg nigs nigt niip niir niit niiu nind ning nini nins nipr nips nipt nirs nirt niru nisd nisi nisp niss nist nisu niti nitr nits niur nngn nnit nnnn nnpi nnpr nnss nntn npin nppd npri nprt npss nptn nrds nrpn nrps nrrd nrsp nrts nsdg nsds nsdt nsin nsis nsnr nspi nsps nsrd nssp nssr nsss nstd nstp nsts nstu ntds ntis ntnd ntnu ntpd ntru ntss ntsu nttr ntui nudd nudi nugs nuin nuit nung nunn nuns nunt nups nurd nuri nurn nurp nurr nurs nurt nuru nusi nuss nust nusu nuts nutt nutu pdns pdpn pdpr pdrs pdsd pdss pgdn pgds pgpu pgss pgup pids pigg pign pigp pigs pigt pigu piip pind ping pini pinn pinp pins pint pinu pipi pipp pips pirg piri pirn pirr pirs piru pisd pisg pisi piss pist pisu piti pitr pits pitt pitu pius pnin pnpp pntd pntr pnup ppds ppgi ppid ppig pppd pppn pppp ppps ppru ppss pptn ppts pptt ppur prgs pri- prid prig prii prin pris prnd prnp prpd prps prrd prri prrs prsd prsi prss prti prtp prtr prud prus prut pruu psdi psdp psdr psds psgi psgr psid psip psis psni psnr pspi pspp pspr psps psrd psrp psst psts pstu ptgs ptpd ptrd ptsd ptui puds pudu pugs pugu puid puig puin puir puis puit puiu pund pung puns punt punu pupi pups pupu pur- purg puri purp purr purs puru pusd pusi puss pust put- puti puts putt putu rdgs rgds rgit rgtr rgts ridd ridi rids rigg rigi rigs rigu riin riis rind ring rinn ripd ripi ripp ripr rips ript riri rirs risd risi risp riss rist risu riti rits ritt ritu rius rndp rnds rngs rnin rnnt rnsp rntd rntp rnut rpdp rpgs rpii rppn rpps rptd rptn rpts rrrr rrsp rrun rsdd rsdg rsds rsid rsis rsnn rsnr rsps rstp rsts rstu rtdt rtgs rtnd rtns rtps rtss rttp rtts rudd rudi rudp ruds rugg rugi rugs ruid ruin ruis ruit rund rung runi runn runs runt rupp rupt rurd ruri rurp rurs ruru rusi russ rust rusu ruti ruts rutt rutu ruud ruun s-ii sdds sdgs sdpr sdps sdrs sdss sdsu sggg sggs sgps sgsd sgss sgts sidd sidi sidr sids sigd sigg sigi sign sigs siit sind sing sini sinn sinp sins sint sinu sipi sipp sips sipt siri sirp sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sitn sits sitt situ siui sius siut snid snig snip snir snit snns snpg snpp snrs snsd sntr snug snur snus spdp spdr spdt spgt spig spin spip spir spis spit spns sppd spps sprd spri sprs spsd spsp spss spst sptr spts spud spug spui spun spur spus sput sris srni srnn srps srpt srsd srsp srtp srtr ssdd ssdp ssgs ssgt ssid ssin ssis ssit ssns ssps sspt ssrg ssri ssrs sssi ssss sstd sstp ssts stds stgr stid stig stip stir stis stit stnd stng stnn stnr stns stpd stpp stps strd stri strn strs stru stsi stss sttd sttr stud stug stun stup stur stus stut sudd sudi suds sug- sugg sugi suid suig suin suir suis suit sun- sund sung suni sunn suns sunt sunu sup- supp supr sups supt sur- surd surg suri surn surp surr surs surt suru sus- susd susi susp suss sust susu suti sutu suus tdis tdri tdss tgts tidd tids tigi tigr tigs tiit tiiu tind ting tini tinn tins tint tinu tip- tipi tipp tips tipt tipu tird tiri tirr tirs tiru tisi tiss tist titi titp tits titt titu tndd tngs tnsp tnts tnut tpdu tpir tppd tppp tppr tprs tptp tptr tput tri- trig trin trip tris trit trng trpg trpn trpp trps