b-u bbb bbd bbi bbo bbr bbt bbu bdb bdd bdi bdo bdr bdt bdu bi- bib bid bii bio bir bit biu bob bod boi boo bor bot bou brb brd bri bro brr brt bru btb btd bti bto btr btt btu bub bud bui buo bur but buu dbb dbd dbi dbo dbr dbt dbu ddb ddd ddi ddo ddr ddt ddu di- dib did dii dio dir dit diu dob dod doi doo dor dot dou drb drd dri dro drr drt dru dtb dtd dti dto dtr dtt dtu dub dud dui duo dur dut i-d ibb ibd ibi ibo ibr ibt ibu idb idd idi ido idr idt idu iib iid iii iio iir iit iiu io- iob iod ioi ioo ior iot iou ir- irb ird iri iro irr irt iru itb itd iti ito itt itu iu- iub iud iui iur iut o-i ob- obb obd obi obo obr obt obu odb odd odi odo odr odt odu oib oid oii oio oir oit oiu oo- oob ood ooi ooo oor oot or- orb ord ori oro orr ort oru ot- otb otd oti oto otr ott otu ou- oud oui ouo our out rbb rbd rbi rbo rbr rbt rbu rdb rdd rdi rdo rdr rdt rdu rib rid rii rio rir rit rob rod roi roo ror rot rou rrb rrd rri rrr rrt rru rtb rtd rti rto rtr rtt rtu rub rud rui ruo rur rut ruu tbb tbd tbi tbo tbr tbt tbu tdb tdd tdi tdo tdr tdt tdu tib tid tii tio tir tit tiu to- tob tod toi too tor tot tou trb trd tri tro trr trt tru ttb ttd tti tto ttr ttt ttu tub tud tui tuo tur tut tuu ubb ubi ubo ubr ubt ubu udb udd udi udo udr udt udu uib uid uii uio uir uit uiu uob uod uoo uor uot ur- urb urd uri uro urr urt uru utb utd uti uto utr utt utu uur uut uuu

bbbb bbdd bbdo bd-r bdii bibb bibi bibo bidi bido bidr bidu bio- bioi biot biou birb bird biri biro birr birt biru bitd bito bitt bitu bobb bobi bobo bobu bodb bodi bodo bodu boi- boid boii boit boiu boob bood boor boot bor- bord bori boro borr bort boru botb botd boti boto bott boud bour bout brdo brdt brid brio brit brob brod broo bror brot brou brrr brud brut btdt btob btor btrt bttb bubb bubi bubo bubu budb budd budi budo budu buid buir buit buiu bur- burb burd buri buro burr burt buru but- buti buto butt d-bo dbit dbtt dddd ddot ddub dibb dibo didi dido didu diii dior diot diou dird dirr dirt diti dito ditt dobb dobi dobu dod- dodd dodi dodo doid doit doob dood door doot dord dori doro dorr dort doru dotd doti doto dott doub doud dour dout drib drit drob drod drot drou drub drui drut druu dtor dtot dub- dubb dubu dudd dudo dudu duid duir duit duo- duri duro durt duru duur duut ibdo ibid ibot ibrd ibri ibro ibtb iddo idid idio idir idro idub iduo iiii iiio iiit iioi iioo iitr iitt iobi iod- iodd iodo ioii ioio ioit iooi iooo iori ioto irdo iri- irid irio irob irod irri irti itdo itoi itoo itor itou itri itto itur iuiu obbo obdt obid obit oboi obor obot obri obro obtd odbo oddd oddi odio odir odiu odoo odor odot odou odtu odur oido oiii oirt oiti oobi oodi ooid oooo oord oort ootb orbb orbi orbo orbu ordo ordu ori- orid orio orit oro- oror orot orri orro orto orub otbd otit oto- otoo otor otro otti otto ottu otur ouii ouir ouit our- ouro ourt out- outb outi outo ouu- rbbb rbbr rdio rib- ribo ribu ridd ridi rido riot riou riri riti rito ritt ritu rob- robb robi robo robt robu rodd rodi rodo roid roio roir roit roiu roob rood rooi roor root rori roro rort roru roti roto rotr rott roub roud rout rrrr rtdt rubb rubi rubu rudd rudi rudo ruid ruit rurd ruri ruro ruru ruti ruto rutt rutu ruud tbit tbrb tddb tdor tdri tibi tibu tidd tiit tiiu tiou tirb tird tiri tiro tirr tiru titi tito titt titu tobi tobo tobt tobu todd todi todo todt todu toid toit tood toor toot tord tori toro torr tort toru totd toti toto totr tott toui tour tout tri- trib trio trit trod troi troo trot trou trtr trub trud trut truu ttbb tttt tubb tubo tubr tubu tudi tudu tuit tuiu tuor turb turd turi turo turr turt turu tuti tuto tutt tutu tuuo ubbi ubbo ubid ubii ubir ubit ubod ubud uddi udid udir udoo udot uirr uor- urbi urdu urib uriu uro- uroo urri urur urut utid utor utri utti utto uttu uuri uuuu

bdoor bdort bibbo bibio bibod bibri biddu bidor bidri bidur birdo birdu birou birur bitit bitru bitti bitto bo-bo bobbi bobr bobri bodd- bodio bodir bodiu bodor bodri boiro boito booit boord boort booru borbo bordi bordo borid borio boro- borod boroo borot borou borro borut botou botro botti bottu boudu bourd bouri bouto bridi briod briot briou brito britt brobo brodd brodo broid brood broto broud brout brrrr brud- bruit bruiu bruri btr-d btr-t buddu budur buird buord burdi burio buroo burri burro burru burtt burud burut butdo butid butit buto- butor butot butou butuo butut d-dot d-rod ddddd dibri diddu didio didit didot didto dioid dioro dioti ditib dittd ditti ditto do-do dobri dobro dodoo dodro doido doodo doout dordt dorid dorio dorit dorot dorud dotid dotoo dotti dotto doubt douit douro drbob dridu drobo droid droit drood drori drott drout druid druri dtour dubbi dubbo dubi dubti duddo dudou durio durtu i-bid i-bod i-bot ibbur ibibo idio- idiot idodi idood idoru idoto iiiii iitti iobit iodid iodo- ioooi ioooo iorio iotit iotti irbid