a-a a-c aaa aac aae aah aak aao aap aas ac- aca acc ace ach ack aco acp acs aea aec aee aeh aek aeo aep aes aha ahc ahe ahh ahk aho ahp ahs aka akc ake akh akk ako akp aks aoa aoc aoe aoh aok aoo aop aos ap- apa apc ape aph apk apo app aps as- asa asc ase ash ask aso asp ass c-- caa cac cae cah cak cao cap cas cca ccc cce cch cck cco ccp ccs ce- cea cec cee ceh cek ceo cep ces ch- cha chc che chh chk cho chp chs cka ckc ckh cko cks co- coa coc coe coh cok coo cop cos cpa cpc cpe cph cpk cpo cpp cps csa csc cse csh csk cso csp css eaa eac eae eah eak eao eap eas ec- eca ecc ece ech eck eco ecs eea eec eee eek eeo eep ees eha ehc ehe ehh eho ehp ehs eka ekc eke ekh eko ekp eks eo- eoa eoc eoe eoh eok eoo eop eos ep- epa epc epe eph epo epp eps es- esa esc ese esh esk eso esp ess haa hac hae hah hak hao hap has hca hcc hce hch hck hco hcp hcs he- hea hec hee heh hek heo hep hes hha hhc hhe hhh hhk hho hhp hhs hka hkh hkk hko hkp hks hoa hoc hoe hoh hok hoo hop hos hpa hpc hpe hph hpk hpo hpp hps hsa hsc hse hsh hsk hsp hss ka- kaa kac kae kah kak kao kap kas kca kcc kce kch kck kcp kcs ke- kea kec kee keh kek keo kep kes kha khe khh khk kho khs kkc kke kkh kkk kkp kks koa koc koe koh kok koo kop kos kpa kpc kpe kph kpk kpo kpp kps ksa ksc kse ksh ksk kso ksp kss oaa oac oae oah oak oao oap oas oc- oca occ och ock oco ocp ocs oea oec oee oeh oeo oep oes oha ohc ohe ohh oho ohp ohs oka okc oke okk oko okp oks oo- ooa ooc ooh ook ooo oop oos op- opa opc ope oph opk opo opp ops os- osa osc ose osh osk oso osp oss p-p paa pac pae pah pak pao pap pas pca pcc pce pch pck pco pcp pcs pea pec pee peh pek peo pep pes pha phc phe phk pho php phs pka pkc pke pko pkp pks poa poc poe poh pok poo pop pos ppa ppc ppe pph ppk ppo ppp pps ps- psa psc pse psh psk pso psp pss saa sac sae sah sak sao sap sas sca scc sce sch sck sco scp scs se- sea sec see seh sek seo sep ses sh- sha shc she shh shk sho shp shs sk- ska skc ske skh skk sko skp sks soa soc soe soh sok soo sop sos spa spc spe sph spk spo spp sps ss- ssa ssc sse ssh ssk sso ssp sss