-er -ol -th b-u bbb bbc bbe bbf bbh bbk bbl bbo bbr bbt bbu bcb bcc bce bcf bch bck bcl bco bcr bct bcu be- beb bec bee bef beh bek bel beo ber bet beu bfb bfc bfe bff bfh bfl bfo bfr bft bfu bhb bhc bhe bhf bhh bhk bhl bho bhr bht bhu bkb bkc bke bkf bkk bkl bko bkr bkt blb blc ble blf blh blk bll blo blr blt blu bob boc boe bof boh bok bol boo bor bot bou brb bre brf brh brk brl bro brr brt bru btb btc bte btf bth btk btl bto btr btt btu bub buc bue buf buh buk bul buo bur but buu c-- cbb cbc cbe cbf cbh cbk cbl cbo cbr cbt cbu ccb ccc cce ccf cch cck ccl cco ccr cct ccu ce- ceb cec cee cef ceh cek cel ceo cer cet ceu cfb cfc cfe cff cfh cfk cfl cfo cfr cft cfu ch- chb chc che chf chh chk chl cho chr cht chu ckb ckc ckh cko ckt cl- clb clc cle clf clh clk cll clo clr clt clu co- cob coc coe cof coh cok col coo cor cot cou crb crc cre crf crh crk crl cro crr crt cru ctb ctc cte ctf cth ctk ctl cto ctr ctt ctu cub cuc cue cuf cuh cuk cul cuo cur cut cuu ebb ebc ebe ebf ebh ebk ebl ebo ebr ebt ebu ec- ecb ecc ece ecf ech eck ecl eco ecr ect ecu eeb eec eee eef eek eel eeo eer eet ef- efb efc efe eff efh efl efo efr eft ehb ehc ehe ehf ehh ehl eho ehr eht ehu ekb ekc eke ekf ekh ekl eko ekr ekt eku elb elc ele elf elh elk ell elo elr elt elu eo- eob eoc eoe eof eoh eok eol eoo eor eot eou erb erc ere erf erh erk erl ero err ert eru etb etc ete etf eth etk etl eto etr ett etu eu- eub euc eue euf eul eur eut fbb fbc fbe fbf fbh fbk fbl fbo fbr fbt fbu fcb fcc fce fcf fck fcl fco fcr fct fcu feb fec fee fef feh fek fel feo fer fet feu ffc ffe fff ffh ffk ffl ffo ffr fft ffu fhb fhc fhe fhf fhh fhl fho fhr fkb fkc fkf fkk fkl fkt flb flc fle flf fll flo flr flt flu fob foc foe fof foh fok fol foo for fot fou frb frc fre frf frh frk frl fro frr frt fru ftb ftc fte ftf fth ftk ftl fto ftr ftt ftu fub fue fuf fuk ful fuo fur fut fuu hbb hbc hbe hbf hbh hbk hbl hbo hbr hbt hbu hcb hcc hce hcf hch hck hcl hco hcr hct he- heb hec hee hef heh hek hel heo her het heu hfb hfc hfe hff hfh hfk hfl hfo hfr hft hfu hhb hhc hhe hhf hhh hhk hhl hho hhr hht hhu hkb hkf hkh hkk hkl hko hkr hkt hku hlb hlc hle hlf hlh hll hlo hlr hlt hlu hob hoc hoe hof hoh hok hol hoo hor hot hou hr- hrb hrc hre hrf hrh hrk hrl hro hrr hrt hru htb htc hte htf hth htk htl hto htr htt hub huc hue huf huh huk hul huo hur hut huu k-t kbb kbc kbe kbf kbh kbk kbl kbo kbr kbu kcb kcc kce kch kck kcl kcr kct kcu ke- keb kec kee kef keh kek kel keo ker ket kfc kff kfh kfo kfu khe khf khh khk kho khr khu kkb kkc kke kkh kkk kkl kkr kkt kku kl- klb klc klf klh klo klr klt klu kob koc koe kof koh kok kol koo kor kot kou krc krf krk krl kro krr krt kru ktb ktc kte ktf kth ktk ktl kto ktr ktt ktu kub kuc kue kuh kuk kul kur kut kuu lbb lbc lbe lbf lbh lbk lbl lbo lbr lbt lbu lcb lcc lce lcf lch lck lcl lco lcr lct lcu leb lec lee lef leh lek lel leo ler let leu lfb lfc lfe lff lfh lfk lfl lfo lfr lft lfu lhb lhc lhf lhh lhk lho lhr lht lhu lkb lkh lkl lkr lkt llb llc lle llf llk lll llo llr llt llu lob loc loe lof loh lok lol loo lor lot lou lrb lrc lrf lrh lrk lro lrr lrt lru ltb ltc lte ltf lth ltk ltl lto ltr ltt ltu lub luc lue luf luh luk lul luo lur lut luu ob- obb obc obe obf obh obk obl obo obr obt obu oc- ocb occ ocf och ock ocl oco ocr oct ocu oeb oec oee oef oeh oel oeo oer oet of- ofb ofc ofe off ofl ofo ofr oft ofu ohc ohe ohf ohh ohl oho ohr oht ohu okb okc oke okk okl oko okr oku olb olc ole olf olk oll olo olt olu oo- oob ooc oof ooh ook ool ooo oor oot or- orb orc ore orf orh ork orl oro orr ort oru ot- otb otc ote otf oth otk otl oto otr ott otu ou- ouc oue ouf ouh ouk oul ouo our out rbb rbc rbe rbf rbh rbk rbl rbo rbr rbt rbu rcb rcc rce rcf rch rcl rco rcr rct rcu re- reb rec ree ref reh rek rel reo rer ret reu rfb rfc rfe rff rfh rfk rfl rfo rfr rft rfu rh- rhb rhc rhe rhf rhh rhl rho rhr rht rhu rkb rkc rke rkf rkk rko rkt rku rlc rle rlf rlh rll rlo rlr rlt rlu rob roc roe rof roh rok rol roo ror rot rou rrb rrc rrf rrh rrk rrl rrr rrt rru rtb rtc rte rtf