-al a-a a-b a-c a-t aaa aab aac aal aar aas aat aau ab- aba abb abc abl abr abs abt abu ac- aca acb acc acl acr acs act acu al- ala alb alc all alr als alt alu ar- ara arb arc arl arr ars art aru as- asa asb asc asl asr ass ast asu at- ata atb atc atl atr ats att atu au- aua aub auc aul aur aus aut b-u baa bab bac bal bar bas bat bau bba bbb bbc bbl bbr bbs bbt bbu bca bcb bcc bcl bcr bcs bct bcu bla blb blc bll blr bls blt blu bra brb brl brr brs brt bru bsa bsb bsc bsl bsr bss bst bsu bta btb btc btl btr bts btt btu bua bub buc bul bur bus but buu c-- caa cab cac cal car cas cat cau cba cbb cbc cbl cbr cbs cbt cbu cca ccb ccc ccl ccr ccs cct ccu cl- cla clb clc cll clr cls clt clu cra crb crc crl crr crs crt cru csa csb csc csl csr css cst csu cta ctb ctc ctl ctr cts ctt ctu cua cub cuc cul cur cus cut cuu la- laa lab lac lal lar las lat lau lba lbb lbc lbl lbr lbs lbt lbu lca lcb lcc lcl lcr lcs lct lcu lla llb llc lll llr lls llt llu lra lrb lrc lrr lrs lrt lru lsa lsb lsc lsl lsr lss lst lsu lta ltb ltc ltl ltr lts ltt ltu lua lub luc lul lur lus lut luu ra- raa rab rac ral rar ras rat rau rba rbb rbc rbl rbr rbs rbt rbu rca rcb rcc rcl rcr rcs rct rcu rla rlc rll rlr rls rlt rlu rra rrb rrc rrl rrr rrs rrt rru rsa rsb rsc rsl rsr rss rst rsu rta rtb rtc rtl rtr rts rtt rtu rua rub ruc rur rus rut ruu saa sab sac sal sar sas sat sau sba sbb sbc sbl sbr sbs sbt sbu sca scb scc scl scr scs sct scu sla slb slc sll slr sls slt slu sr- sra srb src srl srr srs srt ss- ssa ssb ssc ssl ssr sss sst ssu sta stb stc stl str sts stt stu sua sub suc sul sur sus sut suu taa tab tac tal tar tas tat tau tba tbb tbc tbl tbr tbs tbt tbu tca tcb tcc tcl tcr tcs tct tcu tla tlc tll tlr tls tlt tlu tra trb trc trl trr trs trt tru tsa tsb tsc tsl tsr tss tst tsu tta ttb ttc ttl ttr tts ttt ttu tua tub tuc tul tur tus tut tuu ua- uaa uab uac ual uar uas uat uau uba ubb ubc ubl ubr ubs ubt ubu uca ucb ucc ucl ucr ucs uct ucu ula ulb ulc ull ulr uls ult ulu ur- ura urb urc url urr urs urt uru usa usb usc usl usr uss ust usu uta utb utc utl utr uts utt utu uua uuc uur uus uut uuu

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