-al a-a a-b aaa aab aad aae aal aap aas ab- aba abb abd abe abl abp abs ad- ada adb add ade adl adp ads aea aeb aed aee ael aep aes al- ala alb ald ale all alp als ap- apa apb apd ape apl app aps as- asa asb asd ase asl asp ass b-p baa bab bad bae bal bap bas bba bbb bbd bbe bbl bbp bbs bda bdb bdd bde bdl bdp bds be- bea beb bed bee bel bep bes bla blb bld ble bll blp bls bpa bpb bpd bpe bpl bpp bps bsa bsb bsd bse bsl bsp bss daa dab dad dae dal dap das dba dbb dbd dbe dbl dbp dbs dda ddb ddd dde ddl ddp dds de- dea deb ded dee del dep des dl- dla dlb dld dle dll dlp dls dpa dpb dpd dpe dpl dpp dps dsa dsb dsd dse dsl dsp dss eaa eab ead eae eal eap eas eba ebb ebd ebe ebl ebp ebs ed- eda edb edd ede edl edp eds eea eeb eed eee eel eep ees ela elb eld ele ell elp els ep- epa epb epd epe epl epp eps es- esa esb esd ese esl esp ess l-p la- laa lab lad lae lal lap las lba lbb lbd lbe lbl lbp lbs lda ldb ldd lde ldl ldp lds lea leb led lee lel lep les lla llb lld lle lll llp lls lpa lpb lpd lpe lpl lpp lps lsa lsb lsd lse lsl lsp lss p-p paa pab pad pae pal pap pas pba pbb pbd pbe pbl pbp pbs pda pdb pdd pde pdl pdp pds pea peb ped pee pel pep pes pla plb pld ple pll plp pls ppa ppb ppd ppe ppl ppp pps ps- psa psb psd pse psl psp pss saa sab sad sae sal sap sas sba sbb sbd sbe sbl sbp sbs sda sdb sdd sde sdl sdp sds se- sea seb sed see sel sep ses sla slb sld sle sll slp sls spa spb spd spe spl spp sps ss- ssa ssb ssd sse ssl ssp sss