-er -ic b-u bbb bbc bbe bbi bbl bbr bbt bbu bcb bcc bce bci bcl bcr bct bcu bcv be- beb bec bee bei bel ber bet beu bev bi- bib bic bie bii bil bir bit biu biv blb blc ble bli bll blr blt blu blv brb bre bri brl brr brt bru brv btb btc bte bti btl btr btt btu btv bub buc bue bui bul bur but buu bvb bvc bve bvi bvl bvr bvt bvu bvv c-- cbb cbc cbe cbi cbl cbr cbt cbu cbv ccb ccc cce cci ccl ccr cct ccu ccv ce- ceb cec cee cei cel cer cet ceu cev ci- cib cic cie cii cil cir cit ciu civ cl- clb clc cle cli cll clr clt clu clv crb crc cre cri crl crr crt cru crv ctb ctc cte cti ctl ctr ctt ctu ctv cub cuc cue cui cul cur cut cuu cuv cvb cvc cve cvi cvl cvr cvt cvu cvv ebb ebc ebe ebi ebl ebr ebt ebu ebv ec- ecb ecc ece eci ecl ecr ect ecu ecv eeb eec eee eel eer eet eev eib eic eie eii eil eir eit eiu eiv elb elc ele eli ell elr elt elu elv erb erc ere eri erl err ert eru erv etb etc ete eti etl etr ett etu etv eu- eub euc eue eui eul eur eut euv evb evc eve evi evl evr evt evv i-v ibb ibc ibe ibi ibl ibr ibt ibu ibv icb icc ice ici icl icr ict icu icv ie- iec iee iei iel ier iet iev iib iic iie iii iil iir iit iiu il- ilb ilc ile ili ill ilr ilt ilu ilv ir- irb irc ire iri irl irr irt iru irv itb itc ite iti itl itt itu itv iu- iub iuc iue iui iur iut ivb ivc ive ivi ivl ivr ivt ivu ivv lbb lbc lbe lbi lbl lbr lbt lbu lbv lcb lcc lce lci lcl lcr lct lcu lcv leb lec lee lei lel ler let leu lev lib lic lie lii lil lir lit liu liv llb llc lle lli lll llr llt llu llv lrb lrc lri lrr lrt lru lrv ltb ltc lte lti ltl ltr ltt ltu ltv lub luc lue lui lul lur lut luu luv lvb lvc lve lvi lvl lvr lvt lvv rbb rbc rbe rbi rbl rbr rbt rbu rcb rcc rce rci rcl rcr rct rcu rcv re- reb rec ree rei rel rer ret reu rev rib ric rie rii ril rir rit riv rlc rle rli rll rlr rlt rlu rrb rrc rri rrl rrr rrt rru rtb rtc rte rti rtl rtr rtt rtu rtv rub ruc rue rui rur rut ruu ruv rvb rvc rve rvi rvl rvr rvt rvu rvv tbb tbc tbe tbi tbl tbr tbt tbu tbv tcb tcc tce tci tcl tcr tct tcu tcv te- teb tec tee tei tel ter tet teu tev tib tic tie tii til tir tit tiu tiv tlc tle tli tll tlr tlt tlu tlv trb trc tre tri trl trr trt tru trv ttb ttc tte tti ttl ttr ttt ttu ttv tub tuc tue tui tul tur tut tuu tuv tvb tvc tve tvi tvl tvr tvt tvu ubb ubc ube ubi ubl ubr ubt ubu ubv ucb ucc uce uci ucl ucr uct ucu ucv ueb uec uee uei uel uer uet uib uic uie uii uil uir uit uiu ulb ulc ule uli ull ulr ult ulu ulv ur- urb urc ure uri url urr urt uru utb utc ute uti utl utr utt utu utv uuc uue uur uut uuu uvb uvc uve uvl uvu uvv v-e vbc vbi vbl vbr vbv vcc vce vci vcl vcr vct vcu veb vec vee vei vel ver vet veu vi- vib vic vie vii vil vir vit viu viv vl- vlb vlc vle vll vlt vlv vrb vrc vre vri vrr vrt vru vtb vtc vte vti vtl vtr vtt vtu vtv vue vul vur vut vuv vvb vvc vvi vvr vvt vvv