-er -th b-u bbb bbc bbe bbh bbo bbr bbt bbu bcb bcc bce bch bco bcr bct bcu be- beb bec bee beh beo ber bet beu bhb bhc bhe bhh bho bhr bht bhu bob boc boe boh boo bor bot bou brb bre brh bro brr brt bru btb btc bte bth bto btr btt btu bub buc bue buh buo bur but buu c-- cbb cbc cbe cbh cbo cbr cbt cbu ccb ccc cce cch cco ccr cct ccu ce- ceb cec cee ceh ceo cer cet ceu ch- chb chc che chh cho chr cht chu co- cob coc coe coh coo cor cot cou crb crc cre crh cro crr crt cru ctb ctc cte cth cto ctr ctt ctu cub cuc cue cuh cuo cur cut cuu ebb ebc ebe ebh ebo ebr ebt ebu ec- ecb ecc ece ech eco ecr ect ecu eeb eec eee eeo eer eet ehb ehc ehe ehh eho ehr eht ehu eo- eob eoc eoe eoh eoo eor eot eou erb erc ere erh ero err ert eru etb etc ete eth eto etr ett etu eu- eub euc eue eur eut hbb hbc hbe hbh hbo hbr hbt hbu hcb hcc hce hch hco hcr hct he- heb hec hee heh heo her het heu hhb hhc hhe hhh hho hhr hht hhu hob hoc hoe hoh hoo hor hot hou hr- hrb hrc hre hrh hro hrr hrt hru htb htc hte hth hto htr htt hub huc hue huh huo hur hut huu ob- obb obc obe obh obo obr obt obu oc- ocb occ och oco ocr oct ocu oeb oec oee oeh oeo oer oet ohc ohe ohh oho ohr oht ohu oo- oob ooc ooh ooo oor oot or- orb orc ore orh oro orr ort oru ot- otb otc ote oth oto otr ott otu ou- ouc oue ouh ouo our out rbb rbc rbe rbh rbo rbr rbt rbu rcb rcc rce rch rco rcr rct rcu re- reb rec ree reh reo rer ret reu rh- rhb rhc rhe rhh rho rhr rht rhu rob roc roe roh roo ror rot rou rrb rrc rrh rrr rrt rru rtb rtc rte rto rtr rtt rtu rub ruc rue ruh ruo rur rut ruu tbb tbc tbe tbh tbo tbr tbt tbu tcb tcc tce tch tco tcr tct tcu te- teb tec tee teh teo ter tet teu th- thb thc the thh tho thr tht thu to- tob toc toe toh too tor tot tou trb trc tre trh tro trr trt tru ttb ttc tte tth tto ttr ttt ttu tub tuc tue tuh tuo tur tut tuu ubb ubc ube ubh ubo ubr ubt ubu ucb ucc uce uch uco ucr uct ucu ueb uec uee ueh uer uet uhb uhc uhe uhh uho uhr uht uhu uob uoc uoe uoo uor uot ur- urb urc ure uro urr urt uru utb utc ute uth uto utr utt utu uuc uue uur uut uuu

-hou bbbb bbch bbeb bbet bbrc bcbc bccc bcec bcer bcet bche bcor bcru bctc bcuc bebb bebe bebo bech becu beeb beer beet behr beo- beor beot berc bere bero berr bert beru betc bete beth beto bett betu beur bhcc bher bhet bhor bhot bhrt bhur bhut bhuu bobb bobe bobo bobu boce boch boco bocu boec boee boeo boer boet boho bohr boht bohu boob booc booe booh boor boot bor- bore borh boro borr bort boru botb bote both boto bott boue bouh bour bout brcb brce breb brec bree breo brer bret brob broc broe broh broo bror brot brou brrr brtc bruc brue bruh brut btcc btec btob btor btrc btrt bttb bubb bube bubo bubu bucc buce buch buco bucu buer bueu buhe buho buhr bur- burb bure burh buro burr burt buru but- bute buto butt c-bo cbbc cbcc cbce cbcr cbct cbcu cbec cbee cber cbet cbot cbre cbrh cbrt cbtc ccbc cccb cccc cccu ccee cche cchr ccob ccoc ccrc ccre ccrt cctb cctc cctt ccuc ccut cebu cec- cece ceco cect ceeb ceec ceor ceou cer- cerc cere cero cert cet- cete ceto chce chch cheb chec chee cheh cher chet cheu choc choh choo chor chou chrb chrc chro chrr chrt chto chtr chtt chub chur chut cobb cobe cobh cobo cobu coce coch coco coct cocu coho coob cooh coot cor- corb corc core coro corr cort cotb cotc cote coth coto cott cotu coub coue cour cout crbc crbu crcc crce crcr cre- creb crec cree creh creo cret creu crob croc croe croh croo cror crot crrt crtc crub crue crut ctec ctor ctot ctrc cub- cubb cube cucc cuce cuer curb cure curo curr curt cut- cutc cute cuth cuto cutt ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecct eche echo echt eco- ecot ecou ecrc ecrr ecru ect- ectc ecth ecto eeee eeoc eerc eero eetc eete eeth eetu ehcc eheh eher eheu ehre ehte eore eotc eoto erbb erbe ercc erce erch ereb erec erer eret erhc erhu erob eroc eroe eroo errc erre erro erth ertu erub eruc eruh erur etbc etbr etcc etch etco etec etee eter eth- ethe etho etoe etoh etre etro ette etto ettu eubc euch euer eur- eurc eure euro eurt euth hboc hbtu hcbc hccb hccc hcch hebb hebe hebo hebr hech hect heeb heer heet hehe heho heor heou herb herc here hero herr hert heru hete heth heto hett hetu heue heur hhhh hobe hobo hoce hoch hocr hoer hohe hoho hooe hoor hoot horc hore horo horr hort hotb hote hoth hoto hotr hott hotu houe hour hout hree hrob hrrc hrtb hrte htcc htet htoh httr hubb hube hubo huch hucu huer huet huhu huor huot hure huro hurr hurt huru hute huth huto hutt hutu huub o-eo obbo obec