-al -er a-a a-b a-c aaa aab aac aae aal aar aas aau ab- aba abb abc abe abl abr abs abu ac- aca acb acc ace acl acr acs acu aea aeb aec aee ael aer aes aeu al- ala alb alc ale all alr als alu ar- ara arb arc are arl arr ars aru as- asa asb asc ase asl asr ass asu au- aua aub auc aue aul aur aus b-u baa bab bac bae bal bar bas bau bba bbb bbc bbe bbl bbr bbs bbu bca bcb bcc bce bcl bcr bcs bcu be- bea beb bec bee bel ber bes beu bla blb blc ble bll blr bls blu bra brb bre brl brr brs bru bsa bsb bsc bse bsl bsr bss bsu bua bub buc bue bul bur bus buu c-- caa cab cac cae cal car cas cau cba cbb cbc cbe cbl cbr cbs cbu cca ccb ccc cce ccl ccr ccs ccu ce- cea ceb cec cee cel cer ces ceu cl- cla clb clc cle cll clr cls clu cra crb crc cre crl crr crs cru csa csb csc cse csl csr css csu cua cub cuc cue cul cur cus cuu eaa eab eac eae eal ear eas eau eba ebb ebc ebe ebl ebr ebs ebu ec- eca ecb ecc ece ecl ecr ecs ecu eea eeb eec eee eel eer ees ela elb elc ele ell elr els elu era erb erc ere erl err ers eru es- esa esb esc ese esl esr ess esu eu- eua eub euc eue eul eur eus la- laa lab lac lae lal lar las lau lba lbb lbc lbe lbl lbr lbs lbu lca lcb lcc lce lcl lcr lcs lcu lea leb lec lee lel ler les leu lla llb llc lle lll llr lls llu lra lrb lrc lrr lrs lru lsa lsb lsc lse lsl lsr lss lsu lua lub luc lue lul lur lus luu ra- raa rab rac rae ral rar ras rau rba rbb rbc rbe rbl rbr rbs rbu rca rcb rcc rce rcl rcr rcs rcu re- rea reb rec ree rel rer res reu rla rlc rle rll rlr rls rlu rra rrb rrc rrl rrr rrs rru rsa rsb rsc rse rsl rsr rss rsu rua rub ruc rue rur rus ruu saa sab sac sae sal sar sas sau sba sbb sbc sbe sbl sbr sbs sbu sca scb scc sce scl scr scs scu se- sea seb sec see sel ser ses seu sla slb slc sle sll slr sls slu sr- sra srb src sre srl srr srs ss- ssa ssb ssc sse ssl ssr sss ssu sua sub suc sue sul sur sus suu ua- uaa uab uac uae ual uar uas uau uba ubb ubc ube ubl ubr ubs ubu uca ucb ucc uce ucl ucr ucs ucu uea ueb uec uee uel uer ues ula ulb ulc ule ull ulr uls ulu ur- ura urb urc ure url urr urs uru usa usb usc use usl usr uss usu uua uuc uue uur uus uuu

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