a-a a-c aaa aac aag aak aan aao aap aas ac- aca acc acg ack acn aco acp acs ag- aga agc agg agk agn ago agp ags aka akc akg akk akn ako akp aks an- ana anc ang ank ann ano anp ans aoa aoc aog aok aon aoo aop aos ap- apa apc apg apk apn apo app aps as- asa asc asg ask asn aso asp ass c-- caa cac cag cak can cao cap cas cca ccc ccg cck ccn cco ccp ccs cga cgc cgg cgn cgo cgp cgs cka ckc cko cks cn- cna cnc cng cnn cno cnp cns co- coa coc cog cok con coo cop cos cpa cpc cpg cpk cpn cpo cpp cps csa csc csg csk csn cso csp css g-p gaa gac gag gak gan gao gap gas gca gcc gcg gck gcn gco gcp gcs gga ggc ggg ggn ggo ggp ggs gka gkn gko gkp gks gna gnc gnn gno gnp gns goa goc gog gok gon goo gop gos gpa gpc gpg gpk gpn gpo gpp gps gsa gsc gsg gsk gsn gso gsp gss ka- kaa kac kag kak kan kao kap kas kca kcc kcg kck kcn kcp kcs kga kgc kgo kgp kgs kkc kkk kkn kkp kks kn- kna knc kng knk knn kno knp koa koc kog kok kon koo kop kos kpa kpc kpk kpn kpo kpp kps ksa ksc ksg ksk ksn kso ksp kss naa nac nag nak nan nao nap nas nca ncc ncg nck ncn nco ncp ncs nga ngc ngg ngk ngn ngo ngp ngs nka nkc nkk nkn nko nkp nks nna nnc nng nnk nnn nno nnp nns no- noa noc nog nok non noo nop nos npa npc npg npn npo npp nps nsa nsc nsg nsk nsn nso nsp nss oaa oac oag oak oan oao oap oas oc- oca occ ocg ock ocn oco ocp ocs oga ogc ogg ogn ogo ogp ogs oka okc okg okk oko okp oks on- ona onc ong onk onn ono onp ons oo- ooa ooc oog ook oon ooo oop oos op- opa opc opg opk opn opo opp ops os- osa osc osg osk osn oso osp oss p-p paa pac pag pak pan pao pap pas pca pcc pcg pck pcn pco pcp pcs pga pgc pgg pgk pgn pgo pgp pgs pka pkc pkg pkn pko pkp pks pn- pna pnc png pnk pnn pno pnp pns poa poc pog pok pon poo pop pos ppa ppc ppg ppk ppn ppo ppp pps ps- psa psc psg psk psn pso psp pss saa sac sag sak san sao sap sas sca scc scg sck scn sco scp scs sga sgc sgg sgk sgn sgo sgp sgs sk- ska skc skg skk sko skp sks sna snc sng snk snn sno snp sns soa soc sog sok son soo sop sos spa spc spg spk spn spo spp sps ss- ssa ssc ssg ssk ssn sso ssp sss