-al a-a a-b aaa aab aae aag aak aal aan aap ab- aba abb abe abg abk abl abn abp aea aeb aee aeg aek ael aen aep ag- aga agb age agg agk agl agn agp aka akb ake akg akk akl akn akp al- ala alb ale alg alk all aln alp an- ana anb ane ang ank anl ann anp ap- apa apb ape apg apk apl apn app b-p baa bab bae bag bak bal ban bap bba bbb bbe bbg bbk bbl bbn bbp be- bea beb bee beg bek bel ben bep bga bgb bge bgg bgk bgl bgn bgp bka bkb bke bkg bkk bkl bkn bkp bla blb ble blg blk bll bln blp bna bnb bne bng bnk bnl bnn bnp bpa bpb bpe bpg bpl bpn bpp eaa eab eae eag eak eal ean eap eba ebb ebe ebg ebk ebl ebn ebp eea eeb eee eeg eek eel een eep ega egb ege egg egl egn egp eka ekb eke ekg ekl ekp ela elb ele elg elk ell eln elp en- ena enb ene eng enk enl enn enp ep- epa epb epe epg epl epn epp g-p gaa gab gae gag gak gal gan gap gba gbe gbg gbk gbl gbn gbp ge- gea geb gee geg gek gel gen gep gga ggb ggg ggn ggp gka gkb gkn gkp gla glb gle glg glk gll gln glp gna gnb gne gnl gnn gnp gpa gpb gpe gpg gpk gpl gpn gpp ka- kaa kab kae kag kak kal kan kap kba kbb kbe kbk kbl kbn kbp ke- kea keb kee keg kek kel ken kep kga kgb kgl kgp kkb kke kkk kkl kkn kkp kl- kla klb klg kn- kna kne kng knk knl knn knp kpa kpe kpk kpl kpn kpp l-p la- laa lab lae lag lak lal lan lap lba lbb lbe lbg lbk lbl lbp lea leb lee leg lek lel len lep lga lgb lge lgg lgk lgl lgn lgp lka lkb lkg lkl lkp lla llb lle llg llk lll lln llp lna lnb lne lng lnk lnl lnn lnp lpa lpb lpe lpg lpk lpl lpn lpp naa nab nae nag nak nal nan nap nba nbb nbe nbg nbk nbl nbn nbp ne- nea neb nee neg nek nel nen nep nga ngb nge ngg ngk ngl ngn ngp nka nke nkk nkn nkp nla nlb nle nlg nlk nll nln nlp nna nnb nne nng nnk nnl nnn nnp npa npb npe npg npl npn npp p-p paa pab pae pag pak pal pan pap pba pbb pbe pbg pbk pbl pbn pbp pea peb pee peg pek pel pen pep pga pgb pge pgg pgk pgl pgn pgp pka pkb pke pkg pkl pkn pkp pla plb ple plg plk pll pln plp pn- pna pnb pne png pnk pnl pnn pnp ppa ppb ppe ppg ppk ppl ppn ppp