a-a aaa aah aao aap aar aas aha ahh aho ahp ahr ahs aoa aoh aoo aop aor aos ap- apa aph apo app apr aps ar- ara arh aro arp arr ars as- asa ash aso asp asr ass haa hah hao hap har has hha hhh hho hhp hhr hhs hoa hoh hoo hop hor hos hpa hph hpo hpp hpr hps hr- hra hrh hro hrp hrr hrs hsa hsh hsp hsr hss oaa oah oao oap oar oas oha ohh oho ohp ohr ohs oo- ooa ooh ooo oop oor oos op- opa oph opo opp opr ops or- ora orh oro orp orr ors os- osa osh oso osp osr oss p-p paa pah pao pap par pas pha pho php phr phs poa poh poo pop por pos ppa pph ppo ppp ppr pps pra prh pro prp prr prs ps- psa psh pso psp psr pss ra- raa rah rao rap rar ras rh- rha rhh rho rhp rhr rhs roa roh roo rop ror ros rpa rph rpo rpp rpr rps rra rrh rrp rrr rrs rsa rsh rso rsp rsr rss saa sah sao sap sar sas sh- sha shh sho shp shr shs soa soh soo sop sor sos spa sph spo spp spr sps sr- sra srh sro srp srr srs ss- ssa ssh sso ssp ssr sss