b-u bbb bbd bbi bbo bbr bbs bbu bdb bdd bdi bdo bdr bds bdu bi- bib bid bii bio bir bis biu bob bod boi boo bor bos bou brb brd bri bro brr brs bru bsb bsd bsi bso bsr bss bsu bub bud bui buo bur bus buu dbb dbd dbi dbo dbr dbs dbu ddb ddd ddi ddo ddr dds ddu di- dib did dii dio dir dis diu dob dod doi doo dor dos dou drb drd dri dro drr drs dru dsb dsd dsi dso dsr dss dsu dub dud dui duo dur dus i-d ibb ibd ibi ibo ibr ibs ibu idb idd idi ido idr ids idu iib iid iii iio iir iis iiu io- iob iod ioi ioo ior ios iou ir- irb ird iri iro irr irs iru is- isb isd isi iso isr iss isu iu- iub iud iui iur ius o-i ob- obb obd obi obo obr obs obu odb odd odi odo odr ods odu oib oid oii oio oir ois oiu oo- oob ood ooi ooo oor oos or- orb ord ori oro orr ors oru os- osb osd osi oso osr oss osu ou- oud oui ouo our ous rbb rbd rbi rbo rbr rbs rbu rdb rdd rdi rdo rdr rds rdu rib rid rii rio rir ris rob rod roi roo ror ros rou rrb rrd rri rrr rrs rru rsb rsd rsi rso rsr rss rsu rub rud rui ruo rur rus ruu sbb sbd sbi sbo sbr sbs sbu sdb sdd sdi sdo sdr sds sdu sib sid sii sio sir sis siu sob sod soi soo sor sos sou sr- srb srd sri sro srr srs ss- ssb ssd ssi sso ssr sss ssu sub sud sui suo sur sus suu ubb ubi ubo ubr ubs ubu udb udd udi udo udr uds udu uib uid uii uio uir uis uiu uob uod uoo uor uos ur- urb urd uri uro urr urs uru usb usd usi uso usr uss usu uur uus uuu

-ous bbbb bbbs bbdd bbdo bd-r bdii bdos bdsd bibb bibi bibo bibs bidi bido bidr bids bidu biis bio- bioi bios biou birb bird biri biro birr birs biru bis- bisd biso biss bisu bobb bobi bobo bobs bobu bodb bodi bodo bods bodu boi- boid boii bois boiu boob bood boor boos bor- bord bori boro borr bors boru bosi boso boss bosu boud bour bous brdo brds brid brio bris brob brod broo bror bros brou brrr brrs brsb brsr brud brus bsbd bsod bsos bsrd bssd bubb bubi bubo bubs bubu budb budd budi budo buds budu buid buir buis buiu bur- burb burd buri buro burr burs buru busi buss busu buus d-bo dbos dbrs dbss dbus dddd ddss ddub dibb dibo dibs didi dido dids didu diii diis dior dios diou dird dirr dirs dis- disd disi diso diss dius dobb dobi dobs dobu dod- dodd dodi dodo dods doid dois doob dood door doos dord dori doro dorr dors doru dosi doso doss doub doud dour dous drib drob drod drou drrs drub drui drus druu dsdr dsos dsri dsrr dssi dub- dubb dubs dubu dudd dudo duds dudu duid duir duis duo- duos duri duro duru dusi duur ibdo ibid ibis ibos ibrd ibri ibro ibss ibus iddo idid idio idir idis idos idro idso idss idub iduo idus iiii iiio iiis iioi iioo iios iirs iisd iisi iisr iisu iobi iod- iodd iodo ioii ioio iooi iooo ioos iori iors ioso iosu ious irdo irds iri- irid irio iris irob irod irri irrs irus isbd isdb isds isis iso- isor isos isri issi isso issr isss issu isus iuds iuiu iusd iuss obbo obid obis oboi obor obos obri obro obsd obsr obss obus odbo oddd oddi odds odio odir odis odiu odoo odor odos odou odso odur odus oido oids oiii oios oisd oisu oobi oodi ooid oooo ooos oord oosi oous orbb orbi orbo orbs orbu ordo ords ordu ori- orid orio oris oro- oror oros orri orro orrs orsi orso orsu orub orus osdi osii osis osoi osoo osor osos osrd osro ossb ossd ossi osso ossu oubs ouds ouii ouir ouis our- ouro ours ousd ouu- rbbb rbbr rbbs rbds rbis rbsd rbss rdio rdos rdso rib- ribo ribs ribu ridd ridi rido rids riis rios riou riri rirs risd risi riso riss risu rius rob- robb robi robo robs robu rodd rodi rodo rods roid roio roir rois roiu roob rood rooi roor roos rori roro roru rosi roso ross roub roud rous rrrr rsbi rsdd rsds rsid rsis rsos rubb rubi rubs rubu rudd rudi rudo ruds ruid ruis rurd ruri ruro rurs ruru rusi ruso russ rusu ruud s-ib s-ii s-os sbbs sbds sbor sbsd sbsi sbus sdds sdib sdio sdrs sdss sdsu sibi sibo sibs sibu sidd sidi sido sidr sids siod sior sios siou siri siro sirr sirs siru sisd sisi siss sisu siui sius sobo sobr sobs sobu sodd sodo sods sodu soir sois sood soor soos sorb sord sori soro sorr sors soru sosi soso soss soud sour sous srib sris sros srsd srub ssbr ssdd ssid ssis ssri ssrs sssb sssi ssss sub- subb subd subi subo subs sudd sudi sudo suds suid suio suir suis suor suos sur- surd suri suro surr surs suru sus- susd susi suso suss susu suus ubbi ubbo ubid ubii ubir ubis ubod ubos ubud uddi udds udid udir udoo udos udsd uirr uisd uor- urbi urbs urds urdu urib uris uriu uro- uroo urri ursi urso urss ursu urur urus usbr usbs usdo usds usis usoi usos ussb ussr usss ussu usui usus uuri uusi uuuu

bbuss bdoor bdubs bibbo bibbs bibio bibis bibod bibos bibri bibus biddu bidor bidos bidri bidur biosd bioss birdo birds birdu biros birou birrs birur bisou bo-bo bobbi bobos bobr bobri bodd- bodio bodir bodiu bodor bodos bodri boids boios boiro boobs