a-a a-b a-i aaa aab aah aai aao aap aas ab- aba abb abh abi abo abp abs aha ahb ahh ahi aho ahp ahs ai- aia aib aih aii aio aip ais aoa aob aoh aoi aoo aop aos ap- apa apb aph api apo app aps as- asa asb ash asi aso asp ass b-p baa bab bah bai bao bap bas bba bbb bbh bbi bbo bbp bbs bha bhb bhh bhi bho bhp bhs bi- bia bib bih bii bio bip bis boa bob boh boi boo bop bos bpa bpb bph bpi bpo bpp bps bsa bsb bsh bsi bso bsp bss h-i haa hab hah hai hao hap has hba hbb hbh hbi hbo hbp hbs hha hhb hhh hhi hho hhp hhs hia hib hih hii hio hip his hoa hob hoh hoi hoo hop hos hpa hpb hph hpi hpo hpp hps hsa hsb hsh hsi hsp hss ia- iaa iab iah iai iao iap ias iba ibb ibh ibi ibo ibp ibs iha ihb ihh ihi iho ihp ihs iia iib iih iii iio iip iis io- ioa iob ioh ioi ioo iop ios ipa ipb ipi ipo ipp ips is- isa isb ish isi iso isp iss o-i oaa oab oah oai oao oap oas ob- oba obb obh obi obo obp obs oha ohh ohi oho ohp ohs oia oib oii oio oip ois oo- ooa oob ooh ooi ooo oop oos op- opa opb oph opi opo opp ops os- osa osb osh osi oso osp oss p-p paa pab pah pai pao pap pas pba pbb pbi pbo pbp pbs pha phb phi pho php phs pia pib pih pii pio pip pis poa pob poh poi poo pop pos ppa ppb pph ppi ppo ppp pps ps- psa psb psh psi pso psp pss saa sab sah sai sao sap sas sba sbb sbh sbi sbo sbp sbs sh- sha shb shh shi sho shp shs sia sib sih sii sio sip sis soa sob soh soi soo sop sos spa spb sph spi spo spp sps ss- ssa ssb ssh ssi sso ssp sss