a-a a-c aaa aac aah aan aao aap aas ac- aca acc ach acn aco acp acs aha ahc ahh ahn aho ahp ahs an- ana anc anh ann ano anp ans aoa aoc aoh aon aoo aop aos ap- apa apc aph apn apo app aps as- asa asc ash asn aso asp ass c-- caa cac cah can cao cap cas cca ccc cch ccn cco ccp ccs ch- cha chc chh chn cho chp chs cn- cna cnc cnh cnn cno cnp cns co- coa coc coh con coo cop cos cpa cpc cph cpn cpo cpp cps csa csc csh csn cso csp css haa hac hah han hao hap has hca hcc hch hcn hco hcp hcs hha hhc hhh hhn hho hhp hhs hna hnc hnh hnn hno hns hoa hoc hoh hon hoo hop hos hpa hpc hph hpn hpo hpp hps hsa hsc hsh hsn hsp hss naa nac nah nan nao nap nas nca ncc nch ncn nco ncp ncs nha nhc nhh nhn nhp nhs nna nnc nnh nnn nno nnp nns no- noa noc noh non noo nop nos npa npc nph npn npo npp nps nsa nsc nsh nsn nso nsp nss oaa oac oah oan oao oap oas oc- oca occ och ocn oco ocp ocs oha ohc ohh ohn oho ohp ohs on- ona onc onh onn ono onp ons oo- ooa ooc ooh oon ooo oop oos op- opa opc oph opn opo opp ops os- osa osc osh osn oso osp oss p-p paa pac pah pan pao pap pas pca pcc pch pcn pco pcp pcs pha phc phn pho php phs pn- pna pnc pnh pnn pno pnp pns poa poc poh pon poo pop pos ppa ppc pph ppn ppo ppp pps ps- psa psc psh psn pso psp pss saa sac sah san sao sap sas sca scc sch scn sco scp scs sh- sha shc shh shn sho shp shs sna snc snn sno snp sns soa soc soh son soo sop sos spa spc sph spn spo spp sps ss- ssa ssc ssh ssn sso ssp sss