-al a-a a-b a-c a-t aaa aab aac aal aan aar aas aat aau ab- aba abb abc abl abn abr abs abt abu ac- aca acb acc acl acn acr acs act acu al- ala alb alc all aln alr als alt alu an- ana anb anc anl ann anr ans ant anu ar- ara arb arc arl arn arr ars art aru as- asa asb asc asl asn asr ass ast asu at- ata atb atc atl atn atr ats att atu au- aua aub auc aul aun aur aus aut b-u baa bab bac bal ban bar bas bat bau bba bbb bbc bbl bbn bbr bbs bbt bbu bca bcb bcc bcl bcn bcr bcs bct bcu bla blb blc bll bln blr bls blt blu bna bnb bnc bnl bnn bnr bns bnt bnu bra brb brl brn brr brs brt bru bsa bsb bsc bsl bsn bsr bss bst bsu bta btb btc btl btn btr bts btt btu bua bub buc bul bun bur bus but buu c-- caa cab cac cal can car cas cat cau cba cbb cbc cbl cbn cbr cbs cbt cbu cca ccb ccc ccl ccn ccr ccs cct ccu cl- cla clb clc cll cln clr cls clt clu cn- cna cnb cnc cnl cnn cnr cns cnt cnu cra crb crc crl crn crr crs crt cru csa csb csc csl csn csr css cst csu cta ctb ctc ctl ctn ctr cts ctt ctu cua cub cuc cul cun cur cus cut cuu la- laa lab lac lal lan lar las lat lau lba lbb lbc lbl lbr lbs lbt lbu lca lcb lcc lcl lcn lcr lcs lct lcu lla llb llc lll lln llr lls llt llu lna lnb lnc lnl lnn lnr lns lnt lnu lra lrb lrc lrn lrr lrs lrt lru lsa lsb lsc lsl lsn lsr lss lst lsu lta ltb ltc ltl ltr lts ltt ltu lua lub luc lul lun lur lus lut luu naa nab nac nal nan nar nas nat nau nba nbb nbc nbl nbn nbr nbs nbt nbu nca ncb ncc ncl ncn ncr ncs nct ncu nla nlb nlc nll nln nlr nls nlt nlu nna nnb nnc nnl nnn nns nnt nnu nra nrb nrc nrl nrn nrr nrs nrt nru nsa nsb nsc nsl nsn nsr nss nst nsu nta ntb ntc ntn ntr nts ntt ntu nua nub nuc nul nun nur nus nut nuu ra- raa rab rac ral ran rar ras rat rau rba rbb rbc rbl rbn rbr rbs rbt rbu rca rcb rcc rcl rcn rcr rcs rct rcu rla rlc rll rln rlr rls rlt rlu rna rnb rnc rnn rnr rns rnt rnu rra rrb rrc rrl rrn rrr rrs rrt rru rsa rsb rsc rsl rsn rsr rss rst rsu rta rtb rtc rtl rtn rtr rts rtt rtu rua rub ruc run rur rus rut ruu saa sab sac sal san sar sas sat sau sba sbb sbc sbl sbn sbr sbs sbt sbu sca scb scc scl scn scr scs sct scu sla slb slc sll sln slr sls slt slu sna snb snc snl snn snr sns snt snu sr- sra srb src srl srn srr srs srt ss- ssa ssb ssc ssl ssn ssr sss sst ssu sta stb stc stl stn str sts stt stu sua sub suc sul sun sur sus sut suu taa tab tac tal tan tar tas tat tau tba tbb tbc tbl tbn tbr tbs tbt tbu tca tcb tcc tcl tcn tcr tcs tct tcu tla tlc tll tln tlr tls tlt tlu tna tnb tnc tnl tnn tnr tns tnt tra trb trc trl trn trr trs trt tru tsa tsb tsc tsl tsn tsr tss tst tsu tta ttb ttc ttl ttn ttr tts ttt ttu tua tub tuc tul tun tur tus tut tuu ua- uaa uab uac ual uan uar uas uat uau uba ubb ubc ubl ubn ubr ubs ubt ubu uca ucb ucc ucl ucn ucr ucs uct ucu ula ulb ulc ull uln ulr uls ult ulu un- una unb unc unl unn unr uns unt unu ur- ura urb urc url urn urr urs urt uru usa usb usc usl usn usr uss ust usu uta utb utc utl utn utr uts utt utu uua uuc uun uur uus uut uuu

-ana a-un aaaa aaab aaac aaal aaan aaar aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aacn aacr aacs aact aacu aala aalc aall aals aalu aana aara aarc aars aart aaru aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abal aban abar abas abat abau abb- abba abbb abbr abbs abbt abca abcb abcc abcl abcn abcr abcs abct abla abls abnu abra abrc abrs abs- absa absl abss absu abta abts abtu abua abul abun abus abut ac-t acaa acab acac acan acar acas acat acba acbl acca accc accs acct accu acla aclc aclr acls aclu acr- acra acrc acrr acrs acsa acsc acsl acss acst acta actc actl acts actt actu acu- acul acur acus acut alaa alac alal alan alar alas alat alau alb- alba albc albs albu alca alcc alcs all- alla alll alln allr alls allu alna alsa alsc alsn alst alta altn alts alua alun alur alus alut ana- anaa anab anac anal anan anar anas anat anau anba anbb anbl anbu anca ancc anct anla anlc anln anlu anna annb anns annt anrc ansa ansu ant- anta antl antr ants antt antu anua anub anul anun anus anut arab arac aral aran arar aras arat arau arba arbs arc- arca arcs arct arla arna arns arnt arr- arra arrc arrr arrs arrt arru ars- arsa arsc arst arsu arta artc artr arts arua arub arul arun arut asaa asab asac asal asan asar asas asat asau asba asbu asc- asca ascb ascc ascl ascr asct asla aslr