a-a a-c aaa aac aah aap aas ac- aca acc ach acp acs aha ahc ahh ahp ahs ap- apa apc aph app aps as- asa asc ash asp ass c-- caa cac cah cap cas cca ccc cch ccp ccs ch- cha chc chh chp chs cpa cpc cph cpp cps csa csc csh csp css haa hac hah hap has hca hcc hch hcp hcs hha hhc hhh hhp hhs hpa hpc hph hpp hps hsa hsc hsh hsp hss p-p paa pac pah pap pas pca pcc pch pcp pcs pha phc php phs ppa ppc pph ppp pps ps- psa psc psh psp pss saa sac sah sap sas sca scc sch scp scs sh- sha shc shh shp shs spa spc sph spp sps ss- ssa ssc ssh ssp sss