-er -ic b-u bbb bbc bbe bbi bbl bbr bbs bbu bcb bcc bce bci bcl bcr bcs bcu bcv be- beb bec bee bei bel ber bes beu bev bi- bib bic bie bii bil bir bis biu biv blb blc ble bli bll blr bls blu blv brb bre bri brl brr brs bru brv bsb bsc bse bsi bsl bsr bss bsu bsv bub buc bue bui bul bur bus buu bvb bvc bve bvi bvl bvr bvs bvu bvv c-- cbb cbc cbe cbi cbl cbr cbs cbu cbv ccb ccc cce cci ccl ccr ccs ccu ccv ce- ceb cec cee cei cel cer ces ceu cev ci- cib cic cie cii cil cir cis ciu civ cl- clb clc cle cli cll clr cls clu clv crb crc cre cri crl crr crs cru crv csb csc cse csi csl csr css csu csv cub cuc cue cui cul cur cus cuu cuv cvb cvc cve cvi cvl cvr cvs cvu cvv ebb ebc ebe ebi ebl ebr ebs ebu ebv ec- ecb ecc ece eci ecl ecr ecs ecu ecv eeb eec eee eel eer ees eev eib eic eie eii eil eir eis eiu eiv elb elc ele eli ell elr els elu elv erb erc ere eri erl err ers eru erv es- esb esc ese esi esl esr ess esu esv eu- eub euc eue eui eul eur eus euv evb evc eve evi evl evr evs evv i-v ibb ibc ibe ibi ibl ibr ibs ibu ibv icb icc ice ici icl icr ics icu icv ie- iec iee iei iel ier ies iev iib iic iie iii iil iir iis iiu il- ilb ilc ile ili ill ilr ils ilu ilv ir- irb irc ire iri irl irr irs iru irv is- isb isc ise isi isl isr iss isu isv iu- iub iuc iue iui iur ius ivb ivc ive ivi ivl ivr ivs ivu ivv lbb lbc lbe lbi lbl lbr lbs lbu lbv lcb lcc lce lci lcl lcr lcs lcu lcv leb lec lee lei lel ler les leu lev lib lic lie lii lil lir lis liu liv llb llc lle lli lll llr lls llu llv lrb lrc lri lrr lrs lru lrv lsb lsc lse lsi lsl lsr lss lsu lsv lub luc lue lui lul lur lus luu luv lvb lvc lve lvi lvl lvr lvs lvv rbb rbc rbe rbi rbl rbr rbs rbu rcb rcc rce rci rcl rcr rcs rcu rcv re- reb rec ree rei rel rer res reu rev rib ric rie rii ril rir ris riv rlc rle rli rll rlr rls rlu rrb rrc rri rrl rrr rrs rru rsb rsc rse rsi rsl rsr rss rsu rsv rub ruc rue rui rur rus ruu ruv rvb rvc rve rvi rvl rvr rvs rvu rvv sbb sbc sbe sbi sbl sbr sbs sbu sbv scb scc sce sci scl scr scs scu scv se- seb sec see sei sel ser ses seu sev sib sic sie sii sil sir sis siu siv slb slc sle sli sll slr sls slu slv sr- srb src sre sri srl srr srs srv ss- ssb ssc sse ssi ssl ssr sss ssu ssv sub suc sue sui sul sur sus suu suv svb svc sve svi svl svr svs svu svv ubb ubc ube ubi ubl ubr ubs ubu ubv ucb ucc uce uci ucl ucr ucs ucu ucv ueb uec uee uei uel uer ues uib uic uie uii uil uir uis uiu ulb ulc ule uli ull ulr uls ulu ulv ur- urb urc ure uri url urr urs uru usb usc use usi usl usr uss usu usv uuc uue uur uus uuu uvb uvc uve uvl uvs uvu uvv v-e vbc vbi vbl vbr vbs vbv vcc vce vci vcl vcr vcs vcu veb vec vee vei vel ver ves veu vi- vib vic vie vii vil vir vis viu viv vl- vlb vlc vle vll vls vlv vrb vrc vre vri vrr vrs vru vsb vsc vse vsi vsl vsr vss vsu vsv vue vul vur vus vuv vvb vvc vvi vvr vvs vvv