a-a a-b a-i aaa aab aad aah aai aao aap ab- aba abb abd abh abi abo abp ad- ada adb add adh adi ado adp aha ahb ahd ahh ahi aho ahp ai- aia aib aid aih aii aio aip aoa aob aod aoh aoi aoo aop ap- apa apb apd aph api apo app b-p baa bab bad bah bai bao bap bba bbb bbd bbh bbi bbo bbp bda bdb bdd bdh bdi bdo bdp bha bhb bhd bhh bhi bho bhp bi- bia bib bid bih bii bio bip boa bob bod boh boi boo bop bpa bpb bpd bph bpi bpo bpp daa dab dad dah dai dao dap dba dbb dbd dbh dbi dbo dbp dda ddb ddd ddh ddi ddo ddp dh- dha dhb dhd dhh dhi dho dhp di- dia dib did dih dii dio dip doa dob dod doh doi doo dop dpa dpb dpd dph dpi dpo dpp h-i haa hab had hah hai hao hap hba hbb hbd hbh hbi hbo hbp hda hdb hdd hdh hdi hdo hdp hha hhb hhd hhh hhi hho hhp hia hib hid hih hii hio hip hoa hob hod hoh hoi hoo hop hpa hpb hpd hph hpi hpo hpp i-d ia- iaa iab iad iah iai iao iap iba ibb ibd ibh ibi ibo ibp ida idb idd idh idi ido idp iha ihb ihd ihh ihi iho ihp iia iib iid iih iii iio iip io- ioa iob iod ioh ioi ioo iop ipa ipb ipd ipi ipo ipp o-i oaa oab oad oah oai oao oap ob- oba obb obd obh obi obo obp oda odb odd odh odi odo odp oha ohd ohh ohi oho ohp oia oib oid oii oio oip oo- ooa oob ood ooh ooi ooo oop op- opa opb opd oph opi opo opp p-p paa pab pad pah pai pao pap pba pbb pbd pbi pbo pbp pda pdb pdd pdh pdi pdo pdp pha phb phd phi pho php pia pib pid pih pii pio pip poa pob pod poh poi poo pop ppa ppb ppd pph ppi ppo ppp