-al a-a a-b aaa aab aae aak aal aap aas ab- aba abb abe abk abl abp abs aea aeb aee aek ael aep aes aka akb ake akk akl akp aks al- ala alb ale alk all alp als ap- apa apb ape apk apl app aps as- asa asb ase ask asl asp ass b-p baa bab bae bak bal bap bas bba bbb bbe bbk bbl bbp bbs be- bea beb bee bek bel bep bes bka bkb bke bkk bkl bkp bks bla blb ble blk bll blp bls bpa bpb bpe bpl bpp bps bsa bsb bse bsk bsl bsp bss eaa eab eae eak eal eap eas eba ebb ebe ebk ebl ebp ebs eea eeb eee eek eel eep ees eka ekb eke ekl ekp eks ela elb ele elk ell elp els ep- epa epb epe epl epp eps es- esa esb ese esk esl esp ess ka- kaa kab kae kak kal kap kas kba kbb kbe kbk kbl kbp kbs ke- kea keb kee kek kel kep kes kkb kke kkk kkl kkp kks kl- kla klb kls kpa kpe kpk kpl kpp kps ksa ksb kse ksk ksl ksp kss l-p la- laa lab lae lak lal lap las lba lbb lbe lbk lbl lbp lbs lea leb lee lek lel lep les lka lkb lkl lkp lks lla llb lle llk lll llp lls lpa lpb lpe lpk lpl lpp lps lsa lsb lse lsk lsl lsp lss p-p paa pab pae pak pal pap pas pba pbb pbe pbk pbl pbp pbs pea peb pee pek pel pep pes pka pkb pke pkl pkp pks pla plb ple plk pll plp pls ppa ppb ppe ppk ppl ppp pps ps- psa psb pse psk psl psp pss saa sab sae sak sal sap sas sba sbb sbe sbk sbl sbp sbs se- sea seb see sek sel sep ses sk- ska skb ske skk skl skp sks sla slb sle slk sll slp sls spa spb spe spk spl spp sps ss- ssa ssb sse ssk ssl ssp sss