-er b-u bbb bbc bbd bbe bbo bbr bbt bbu bcb bcc bcd bce bco bcr bct bcu bdb bdc bdd bde bdo bdr bdt bdu be- beb bec bed bee beo ber bet beu bob boc bod boe boo bor bot bou brb brd bre bro brr brt bru btb btc btd bte bto btr btt btu bub buc bud bue buo bur but buu c-- cbb cbc cbd cbe cbo cbr cbt cbu ccb ccc ccd cce cco ccr cct ccu cdb cdc cdd cde cdo cdr cdt cdu ce- ceb cec ced cee ceo cer cet ceu co- cob coc cod coe coo cor cot cou crb crc crd cre cro crr crt cru ctb ctc ctd cte cto ctr ctt ctu cub cuc cud cue cuo cur cut cuu dbb dbc dbd dbe dbo dbr dbt dbu dcb dcc dcd dce dco dcr dct dcu ddb ddc ddd dde ddo ddr ddt ddu de- deb dec ded dee deo der det deu dob doc dod doe doo dor dot dou drb drc drd dre dro drr drt dru dtb dtc dtd dte dto dtr dtt dtu dub duc dud due duo dur dut ebb ebc ebd ebe ebo ebr ebt ebu ec- ecb ecc ecd ece eco ecr ect ecu ed- edb edc edd ede edo edr edt edu eeb eec eed eee eeo eer eet eo- eob eoc eod eoe eoo eor eot eou erb erc erd ere ero err ert eru etb etc etd ete eto etr ett etu eu- eub euc eud eue eur eut ob- obb obc obd obe obo obr obt obu oc- ocb occ ocd oco ocr oct ocu odb odc odd ode odo odr odt odu oeb oec oed oee oeo oer oet oo- oob ooc ood ooo oor oot or- orb orc ord ore oro orr ort oru ot- otb otc otd ote oto otr ott otu ou- ouc oud oue ouo our out rbb rbc rbd rbe rbo rbr rbt rbu rcb rcc rcd rce rco rcr rct rcu rdb rdc rdd rde rdo rdr rdt rdu re- reb rec red ree reo rer ret reu rob roc rod roe roo ror rot rou rrb rrc rrd rrr rrt rru rtb rtc rtd rte rto rtr rtt rtu rub ruc rud rue ruo rur rut ruu tbb tbc tbd tbe tbo tbr tbt tbu tcb tcc tcd tce tco tcr tct tcu tdb tdc tdd tde tdo tdr tdt tdu te- teb tec ted tee teo ter tet teu to- tob toc tod toe too tor tot tou trb trc trd tre tro trr trt tru ttb ttc ttd tte tto ttr ttt ttu tub tuc tud tue tuo tur tut tuu ubb ubc ube ubo ubr ubt ubu ucb ucc ucd uce uco ucr uct ucu udb udc udd ude udo udr udt udu ueb uec ued uee uer uet uob uoc uod uoe uoo uor uot ur- urb urc urd ure uro urr urt uru utb utc utd ute uto utr utt utu uuc uue uur uut uuu

bbbb bbdd bbdo bbeb bbet bbrc bcbc bccc bcde bcec bcer bcet bcor bcru bctc bcuc bd-r bdbc bddc bebb bebe bebo becu bede bedo bedu beeb beed beer beet beo- beod beor beot berc berd bere bero berr bert beru betc bete beto bett betu beur bobb bobe bobo bobu boce boco bocu bodb bode bodo bodu boec boee boeo boer boet boob booc bood booe boor boot bor- bord bore boro borr bort boru botb botd bote boto bott boud boue bour bout brcb brce brdo brdt breb brec bred bree breo brer bret brob broc brod broe broo bror brot brou brrr brtc bruc brud brue brut btcc btdt btec btob btor btrc btrt bttb bubb bube bubo bubu bucc buce buco bucu budb budd bude budo budu buer bueu bur- burb burd bure buro burr burt buru but- bute buto butt c-bo c-cd cbbc cbcc cbce cbcr cbct cbcu cbdb cbdc cbdo cbec cbee cber cbet cbot cbrd cbre cbrt cbtc ccbc cccb cccc cccu ccdc ccdr cced ccee ccob ccoc ccod ccrc ccre ccrt cctb cctc cctt ccuc ccut cd-e cd-r cddb cddr cdec cder cdot cdre cebu cec- cece ceco cect cedd cede cedo cedt cedu ceeb ceec ceor ceou cer- cerc cerd cere cero cert cet- cete ceto cobb cobe cobo cobu coce coco coct cocu codd code coed coob cood coot cor- corb corc cord core coro corr cort cotb cotc cote coto cott cotu coub coud coue cour cout crbc crbu crcc crce crcr crdc cre- creb crec cred cree creo cret creu crob croc crod croe croo cror crot crrt crtc crub crud crue crut ctec ctor ctot ctrc cub- cubb cube cucc cuce cude cued cuer curb curd cure curo curr curt cut- cutc cute cuto cutt d-bo dbcc dbtt dcbc dccb dccc dcct dccu dcdb dctc dddd ddoc ddot ddrc ddre ddub debe debt debu dec- decc decd dece deco dect dedd dede dedo dedu deeb deed deer deet deor der- derb derc dere dero derr dete deto detr deue deur deut dobb dobe dobu doce doco doct docu dod- dodd dode dodo doer doob dood door doot dorc dord dore doro dorr dort doru dotd dote doto dott doub douc doud doue dour dout drbc dred dree dret drob drod drot drou drub drue drut druu dtcc dted dtor dtot dub- dubb dubc dube dubu duce duco duct dudd dude dudo dudu duer duet duo- dure duro durt duru dute duur duut ebbc ebbo ebbr ebcc ebed eber eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecct ecdc eced eco- ecod ecot ecou ecrc ecrr ecru ect- ectc ecto eddc edde eddo ede- eder edoc edod edou edru educ edur eede eedu eeee eeoc eerc eero eetc eete eetu eocd eode eore eotc eotd eoto erbb erbe ercc erce erde ereb erec ered erer eret erob eroc erod eroe eroo