-al -ol a-a a-c aaa aac aae aag aal aan aao aap ac- aca acc ace acg acl acn aco acp aea aec aee aeg ael aen aeo aep ag- aga agc age agg agl agn ago agp al- ala alc ale alg all aln alo alp an- ana anc ane ang anl ann ano anp aoa aoc aoe aog aol aon aoo aop ap- apa apc ape apg apl apn apo app c-- caa cac cae cag cal can cao cap cca ccc cce ccg ccl ccn cco ccp ce- cea cec cee ceg cel cen ceo cep cga cgc cge cgg cgl cgn cgo cgp cl- cla clc cle clg cll cln clo clp cn- cna cnc cne cng cnl cnn cno cnp co- coa coc coe cog col con coo cop cpa cpc cpe cpg cpl cpn cpo cpp eaa eac eae eag eal ean eao eap ec- eca ecc ece ecg ecl ecn eco eea eec eee eeg eel een eeo eep ega egc ege egg egl egn ego egp ela elc ele elg ell eln elo elp en- ena enc ene eng enl enn eno enp eo- eoa eoc eoe eog eol eon eoo eop ep- epa epc epe epg epl epn epo epp g-p gaa gac gae gag gal gan gao gap gca gcc gce gcg gcl gcn gco gcp ge- gea gec gee geg gel gen geo gep gga ggc ggg ggn ggo ggp gla glc gle glg gll gln glo glp gna gnc gne gnl gnn gno gnp goa goc goe gog gol gon goo gop gpa gpc gpe gpg gpl gpn gpo gpp l-p la- laa lac lae lag lal lan lao lap lca lcc lce lcg lcl lcn lco lcp lea lec lee leg lel len leo lep lga lgc lge lgg lgl lgn lgo lgp lla llc lle llg lll lln llo llp lna lnc lne lng lnl lnn lno lnp loa loc loe log lol lon loo lop lpa lpc lpe lpg lpl lpn lpo lpp naa nac nae nag nal nan nao nap nca ncc nce ncg ncl ncn nco ncp ne- nea nec nee neg nel nen neo nep nga ngc nge ngg ngl ngn ngo ngp nla nlc nle nlg nll nln nlo nlp nna nnc nne nng nnl nnn nno nnp no- noa noc noe nog nol non noo nop npa npc npe npg npl npn npo npp oaa oac oae oag oal oan oao oap oc- oca occ ocg ocl ocn oco ocp oea oec oee oeg oel oen oeo oep oga ogc oge ogg ogl ogn ogo ogp ola olc ole olg oll oln olo olp on- ona onc one ong onl onn ono onp oo- ooa ooc oog ool oon ooo oop op- opa opc ope opg opl opn opo opp p-p paa pac pae pag pal pan pao pap pca pcc pce pcg pcl pcn pco pcp pea pec pee peg pel pen peo pep pga pgc pge pgg pgl pgn pgo pgp pla plc ple plg pll pln plo plp pn- pna pnc pne png pnl pnn pno pnp poa poc poe pog pol pon poo pop ppa ppc ppe ppg ppl ppn ppo ppp