a-a aaa aaf aah aao aap aas af- afa aff afh afo afp afs aha ahf ahh aho ahp ahs aoa aof aoh aoo aop aos ap- apa apf aph apo app aps as- asa asf ash aso asp ass faa faf fah fao fap fas ffa fff ffh ffo ffp ffs fha fhf fhh fho fhp fhs foa fof foh foo fop fos fpa fph fpo fpp fps fsa fsf fsh fso fsp fss haa haf hah hao hap has hfa hff hfh hfo hfp hfs hha hhf hhh hho hhp hhs hoa hof hoh hoo hop hos hpa hpf hph hpo hpp hps hsa hsf hsh hsp hss oaa oaf oah oao oap oas of- ofa off ofo ofp ofs oha ohf ohh oho ohp ohs oo- ooa oof ooh ooo oop oos op- opa opf oph opo opp ops os- osa osf osh oso osp oss p-p paa paf pah pao pap pas pfa pff pfo pfp pfs pha phf pho php phs poa pof poh poo pop pos ppa ppf pph ppo ppp pps ps- psa psf psh pso psp pss saa saf sah sao sap sas sfa sff sfh sfo sfp sfs sh- sha shf shh sho shp shs soa sof soh soo sop sos spa spf sph spo spp sps ss- ssa ssf ssh sso ssp sss