dosi doso doss doub doud doun dour dous drhs drib drih drin drnh drno drob drod droh dron drou drrs drub drui drus druu dsdr dshs dsos dsri dsrr dssi dssn dub- dubb dubh dubs dubu dudd dudo duds dudu duhr duhs duhu duid duin duir duis dunn duno duns duo- duon duos duri durn duro duru dush dusi duur h-ii hbbs hbds hbhs hbio hbos hbrs hbss hdhs hdod hdos hdri hdss hhds hhhh hhhs hhus hibi hibu hidi hids hihi hiho hiis hiiu hind hinn hino hins hiob hird hiri hirn hiro hirs hiru hisb hisd hish hisn hiss hndd hnhs hnoi hobo hobs hodh hodi hodr hods hohn hoho hoid hoir hois hond honi hono hons honu hood hoon hoor hoos hord hori horn horo horr hors hosh hoss houd hour hrdn hrhs hrib hrid hrob hrod hron hros hrso hrud hrun hshs hsin hsni hsob hson hsur hubb hubi hubo hubs hudd hudi hudo huds hudu huhi huhn huhs huhu huib huid huir huis hund hunh huni huns huon huor huos hurd huri hurn huro hurr hurs huru hush husi huso huss huub huus i-no ibdo ibid ibis ibns ibon ibos ibrd ibri ibro ibsn ibss ibus iddo idid idin idio idir idis idno idon idos idro idso idss idub idun iduo idus ihdr ihis ihob ihrd ihss ihub ihud ihuo iiii iiio iiis iino iioi iioo iios iirs iisd iisi iisr iisu inbd inbo ind- indi indo inds indu inhd inhs inid inis inni inno innr inns innu ino- inoi inon inor inos inou inri inro inrs insh inso inss insu inui inun inus iobi iod- iodd iodo ioii ioio ioni ionn iono ions iooi iooo ioos iori iors ioso iosu ioun ious irdo irds irhs iri- irid irin irio iris irob irod iroh iron irri irrs irun irus isbd isbn isdb isdn isds ishi ishr ishs isin isis isno iso- ison isor isos isri issh issi isso issr isss issu isuh isus iuds iuiu iuno iusd iuss n-ii nbbo nbhd nbhs nddb nddo ndhs ndor ndos ndri ndsi ndss nhhs nhis nhnn nhon nibi nibo nibs nidd nidi nido nids niir niiu nind ninh nini nino nins nioh nion nioo nios niou niro nirs niru nisd nish nisi niso niss nisu niur nndb nnhs nnnn nnos nnss nobi nobo nobs nobu nodi nodo nods nodu nohn noho nohs noib noid noin noio noir nois non- noni nonn nono nons nonu noo- noob noon nooo noor noos nor- norb nord nori norn noro norr nors nos- nosh noss nosu nouh noun nour nous nrds nrhs nron nrrd nsbo nsds nshs nsin nsis nsnr nsos nsou nsrd nssb nsso nssr nsss nsub nubi nubs nudd nudi nudo nuhi nuin nunn nuno nuns nuon nurd nuri nurn nurr nurs nuru nush nusi nuss nusu obbo obhs obid obin obis oboi obon obor obos obrh obri obro obsd obsn obsr obss obuh obus odbo oddd oddi odds odin odio odir odis odiu odnb odoh odon odoo odor odos odou odso odur odus ohhi ohho ohhs ohid ohio ohis ohno ohob ohoh ohos ohrn ohso ohss ohus oido oids oiii oins oion oios oisd oisu ondi ondo onir onis onni onno onod onon onor onos onso onur onus oobi oodi ooho oohs ooid oons oooh oooo ooos oord oosi oous orbb orbi orbo orbs orbu ordn ordo ords ordu orhs ori- orid orin orio oris orni orno orns oro- oron oror oros orri orro orrs orsi orso orsu orub orus osdi oshi osho oshs oshu osii osin osis osno osnr osoi osoo osor osos osrd osro ossb ossd ossi osso ossu osun oubs oudh ouds ouii ouin ouir ouis oun- ound our- ourn ouro ours ousd ouu- rbbb rbbr rbbs rbds rbhs rbis rboh rbsd rbss rdhs rdio rdos rdso rhhs rhib rhin rhio rhob rhod rhoh rhon rhos rhun rhus rib- ribo ribs ribu ridd ridi rido rids riho rihs riin riis rind rinn rino rion rios riou riri rirs risd rish risi riso riss risu rius rnbr rnds rnin rnod rnsh rob- robb robi robo robs robu rodd rodi rodo rods rohn rohr rohs rohu roid roin roio roir rois roiu rond roni rono rons roob rood rooi roon roor roos rori roro roru rosh rosi roso ross roub roud rouh roun rous rrhs rrrr rrun rsbi rsdd rsds rshd rshs rsid rsis rsnn rsno rsnr rsos rubb rubi rubs rubu rudd rudi rudo ruds ruhh ruhi ruhn ruhr ruhs ruid ruin ruis rund runi runn runo runs rurd ruri ruro rurs ruru rush rusi ruso russ rusu ruud ruun s-ib s-ii s-os sbbs sbds sbhs sbor sbsd sbsi sbus sdds sdhb sdhd sdhs sdib sdio sdrs sdss sdsu shbs shhh shhs shib shid shih shii shin shio shir shis shiu shod shon shoo shor shos shou shri shrs shub shud shui shun shur shus shuu sibi sibo sibs sibu sidd sidh sidi sido sidr sids sihi sihr sihs sihu sind sinh sini sinn sino sins sinu siod sion sior sios siou siri siro sirr sirs siru sisd sish sisi siss sisu siui sius sndh snhs snib snid snir snns snob snod snoo snor snos snrs snsd snub snur snus sobo sobr sobs sobu sodd sodo sods sodu sohh sohn soho sohs sohu soin soir sois son- sond soni sono sons sonu sood soon soor soos sorb sord sorh sori sorn soro sorr sors soru sosh sosi soso soss soud soun sour sous srhs srib sris srni srnn srno sros srsd srub ssbn ssbr ssdd sshs ssid ssin ssis ssns ssri ssrs sssb sssh sssi ssss sub- subb subd subh subi subo subs sudd sudh sudi sudo suds suhb suhi suho suhr suid suin suio suir suis sun- sunb sund suni sunn suno suns sunu suoh suor suos sur- surd suri surn suro surr surs suru sus- susd susi suso suss susu suus ubbi ubbo ubid ubii ubir ubis ubod ubon ubos ubud uddi udds udid udin udir udoh udon udoo udos udsd udun uh-d uhid uhno