-er -ic b-u bbb bbc bbe bbi bbm bbo bbr bbt bbu bcb bcc bce bci bcm bco bcr bct bcu be- beb bec bee bei bem beo ber bet beu bi- bib bic bie bii bim bio bir bit biu bmb bmc bme bmi bmm bmo bmr bmt bmu bob boc boe boi bom boo bor bot bou brb bre bri brm bro brr brt bru btb btc bte bti btm bto btr btt btu bub buc bue bui bum buo bur but buu c-- cbb cbc cbe cbi cbm cbo cbr cbt cbu ccb ccc cce cci ccm cco ccr cct ccu ce- ceb cec cee cei cem ceo cer cet ceu ci- cib cic cie cii cim cio cir cit ciu cmb cmc cme cmi cmm cmo cmr cmt cmu co- cob coc coe coi com coo cor cot cou crb crc cre cri crm cro crr crt cru ctb ctc cte cti ctm cto ctr ctt ctu cub cuc cue cui cum cuo cur cut cuu ebb ebc ebe ebi ebm ebo ebr ebt ebu ec- ecb ecc ece eci ecm eco ecr ect ecu eeb eec eee eem eeo eer eet eib eic eie eii eim eio eir eit eiu em- emb emc eme emi emm emo emr emt emu eo- eob eoc eoe eoi eom eoo eor eot eou erb erc ere eri erm ero err ert eru etb etc ete eti etm eto etr ett etu eu- eub euc eue eui eur eut ibb ibc ibe ibi ibm ibo ibr ibt ibu icb icc ice ici icm ico icr ict icu ie- iec iee iei iem ier iet iib iic iie iii iim iio iir iit iiu im- imb imc ime imi imm imo imt imu io- iob ioc ioe ioi iom ioo ior iot iou ir- irb irc ire iri irm iro irr irt iru itb itc ite iti itm ito itt itu iu- iub iuc iue iui ium iur iut m-o m-r mbb mbc mbe mbi mbm mbo mbr mbt mbu mc- mcb mcc mce mci mcm mco mcr mct mcu meb mec mee mei mem meo mer met meu mi- mib mic mie mii mim mio mir mit miu mmb mmc mme mmi mmm mmo mmr mmt mmu mob moc moe moi mom moo mor mot mou mrb mrc mre mri mrm mro mrr mrt mru mtb mtc mte mti mtm mto mtr mtt mtu mub muc mue mui mum mur mut muu o-i ob- obb obc obe obi obm obo obr obt obu oc- ocb occ oci ocm oco ocr oct ocu oeb oec oee oei oem oeo oer oet oib oic oie oii oim oio oir oit oiu om- omb omc ome omi omm omo omr omt omu oo- oob ooc ooi oom ooo oor oot or- orb orc ore ori orm oro orr ort oru ot- otb otc ote oti otm oto otr ott otu ou- ouc oue oui oum ouo our out rbb rbc rbe rbi rbm rbo rbr rbt rbu rcb rcc rce rci rcm rco rcr rct rcu re- reb rec ree rei rem reo rer ret reu rib ric rie rii rim rio rir rit rmb rmc rme rmi rmm rmo rmr rmt rob roc roe roi rom roo ror rot rou rrb rrc rri rrm rrr rrt rru rtb rtc rte rti rtm rto rtr rtt rtu rub ruc rue rui rum ruo rur rut ruu tbb tbc tbe tbi tbm tbo tbr tbt tbu tcb tcc tce tci tcm tco tcr tct tcu te- teb tec tee tei tem teo ter tet teu tib tic tie tii tim tio tir tit tiu tmb tmc tme tmi tmm tmo tmr tmt tmu to- tob toc toe toi tom too tor tot tou trb trc tre tri trm tro trr trt tru ttb ttc tte tti ttm tto ttr ttt ttu tub tuc tue tui tum tuo tur tut tuu ubb ubc ube ubi ubo ubr ubt ubu ucb ucc uce uci ucm uco ucr uct ucu ueb uec uee uei uem uer uet uib uic uie uii uim uio uir uit uiu um- umb umc ume umi umm umo umr umt umu uob uoc uoe uom uoo uor uot ur- urb urc ure uri urm uro urr urt uru utb utc ute uti utm uto utr utt utu uuc uue uum uur uut uuu