-th a-a a-b a-i a-t aaa aab aad aah aai aao aas aat ab- aba abb abd abh abi abo abs abt ad- ada adb add adh adi ado ads adt aha ahb ahd ahh ahi aho ahs aht ai- aia aib aid aih aii aio ais ait aoa aob aod aoh aoi aoo aos aot as- asa asb asd ash asi aso ass ast at- ata atb atd ath ati ato ats att baa bab bad bah bai bao bas bat bba bbb bbd bbh bbi bbo bbs bbt bda bdb bdd bdh bdi bdo bds bdt bha bhb bhd bhh bhi bho bhs bht bi- bia bib bid bih bii bio bis bit boa bob bod boh boi boo bos bot bsa bsb bsd bsh bsi bso bss bst bta btb btd bth bti bto bts btt daa dab dad dah dai dao das dat dba dbb dbd dbh dbi dbo dbs dbt dda ddb ddd ddh ddi ddo dds ddt dh- dha dhb dhd dhh dhi dho dhs dht di- dia dib did dih dii dio dis dit doa dob dod doh doi doo dos dot dsa dsb dsd dsh dsi dso dss dst dta dtb dtd dth dti dto dts dtt h-i haa hab had hah hai hao has hat hba hbb hbd hbh hbi hbo hbs hbt hda hdb hdd hdh hdi hdo hds hdt hha hhb hhd hhh hhi hho hhs hht hia hib hid hih hii hio his hit hoa hob hod hoh hoi hoo hos hot hsa hsb hsd hsh hsi hss hst hta htb htd hth hti hto hts htt i-d ia- iaa iab iad iah iai iao ias iat iba ibb ibd ibh ibi ibo ibs ibt ida idb idd idh idi ido ids idt iha ihb ihd ihh ihi iho ihs iht iia iib iid iih iii iio iis iit io- ioa iob iod ioh ioi ioo ios iot is- isa isb isd ish isi iso iss ist ita itb itd ith iti ito its itt o-i oaa oab oad oah oai oao oas oat ob- oba obb obd obh obi obo obs obt oda odb odd odh odi odo ods odt oha ohd ohh ohi oho ohs oht oia oib oid oii oio ois oit oo- ooa oob ood ooh ooi ooo oos oot os- osa osb osd osh osi oso oss ost ot- ota otb otd oth oti oto ots ott saa sab sad sah sai sao sas sat sba sbb sbd sbh sbi sbo sbs sbt sda sdb sdd sdh sdi sdo sds sdt sh- sha shb shd shh shi sho shs sht sia sib sid sih sii sio sis sit soa sob sod soh soi soo sos sot ss- ssa ssb ssd ssh ssi sso sss sst sta stb std sth sti sto sts stt taa tab tad tah tai tao tas tat tba tbb tbd tbh tbi tbo tbs tbt tda tdb tdd tdh tdi tdo tds tdt th- tha thb thd thh thi tho ths tht tia tib tid tih tii tio tis tit to- toa tob tod toh toi too tos tot tsa tsb tsd tsh tsi tso tss tst tta ttb ttd tth tti tto tts ttt