-al a-a a-b a-c aaa aab aac aak aal aan aas aau ab- aba abb abc abk abl abn abs abu ac- aca acb acc ack acl acn acs acu aka akb akc akk akl akn aks aku al- ala alb alc alk all aln als alu an- ana anb anc ank anl ann ans anu as- asa asb asc ask asl asn ass asu au- aua aub auc auk aul aun aus b-u baa bab bac bak bal ban bas bau bba bbb bbc bbk bbl bbn bbs bbu bca bcb bcc bck bcl bcn bcs bcu bka bkb bkc bkk bkl bkn bks bla blb blc blk bll bln bls blu bna bnb bnc bnk bnl bnn bns bnu bsa bsb bsc bsk bsl bsn bss bsu bua bub buc buk bul bun bus buu c-- caa cab cac cak cal can cas cau cba cbb cbc cbk cbl cbn cbs cbu cca ccb ccc cck ccl ccn ccs ccu cka ckb ckc cks cl- cla clb clc clk cll cln cls clu cn- cna cnb cnc cnl cnn cns cnu csa csb csc csk csl csn css csu cua cub cuc cuk cul cun cus cuu ka- kaa kab kac kak kal kan kas kau kba kbb kbc kbk kbl kbn kbs kbu kca kcb kcc kck kcl kcn kcs kcu kkb kkc kkk kkl kkn kks kku kl- kla klb klc kls klu kn- kna knc knk knl knn knu ksa ksb ksc ksk ksl ksn kss ksu kub kuc kuk kul kun kus kuu la- laa lab lac lak lal lan las lau lba lbb lbc lbk lbl lbs lbu lca lcb lcc lck lcl lcn lcs lcu lka lkb lkl lks lla llb llc llk lll lln lls llu lna lnb lnc lnk lnl lnn lns lnu lsa lsb lsc lsk lsl lsn lss lsu lua lub luc luk lul lun lus luu naa nab nac nak nal nan nas nau nba nbb nbc nbk nbl nbn nbs nbu nca ncb ncc nck ncl ncn ncs ncu nka nkc nkk nkn nks nku nla nlb nlc nlk nll nln nls nlu nna nnb nnc nnk nnl nnn nns nnu nsa nsb nsc nsk nsl nsn nss nsu nua nub nuc nuk nul nun nus nuu saa sab sac sak sal san sas sau sba sbb sbc sbk sbl sbn sbs sbu sca scb scc sck scl scn scs scu sk- ska skb skc skk skl sks sku sla slb slc slk sll sln sls slu sna snb snc snk snl snn sns snu ss- ssa ssb ssc ssk ssl ssn sss ssu sua sub suc suk sul sun sus suu ua- uaa uab uac uak ual uan uas uau uba ubb ubc ubk ubl ubn ubs ubu uca ucb ucc uck ucl ucn ucs ucu uka ukb ukc ukk ukl ukn uku ula ulb ulc ulk ull uln uls ulu un- una unb unc unk unl unn uns unu usa usb usc usk usl usn uss usu uua uuc uun uus uuu