a-a a-b a-i aaa aab aad aah aai aar aas ab- aba abb abd abh abi abr abs ad- ada adb add adh adi adr ads aha ahb ahd ahh ahi ahr ahs ai- aia aib aid aih aii air ais ar- ara arb ard arh ari arr ars as- asa asb asd ash asi asr ass baa bab bad bah bai bar bas bba bbb bbd bbh bbi bbr bbs bda bdb bdd bdh bdi bdr bds bha bhb bhd bhh bhi bhr bhs bi- bia bib bid bih bii bir bis bra brb brd brh bri brr brs bsa bsb bsd bsh bsi bsr bss daa dab dad dah dai dar das dba dbb dbd dbh dbi dbr dbs dda ddb ddd ddh ddi ddr dds dh- dha dhb dhd dhh dhi dhr dhs di- dia dib did dih dii dir dis dra drb drd dri drr drs dsa dsb dsd dsh dsi dsr dss h-i haa hab had hah hai har has hba hbb hbd hbh hbi hbr hbs hda hdb hdd hdh hdi hdr hds hha hhb hhd hhh hhi hhr hhs hia hib hid hih hii hir his hr- hra hrb hrd hrh hri hrr hrs hsa hsb hsd hsh hsi hsr hss i-d ia- iaa iab iad iah iai iar ias iba ibb ibd ibh ibi ibr ibs ida idb idd idh idi idr ids iha ihb ihd ihh ihi ihr ihs iia iib iid iih iii iir iis ir- ira irb ird iri irr irs is- isa isb isd ish isi isr iss ra- raa rab rad rah rai rar ras rba rbb rbd rbh rbi rbr rbs rda rdb rdd rdh rdi rdr rds rh- rha rhb rhd rhh rhi rhr rhs ria rib rid rih rii rir ris rra rrb rrd rrh rri rrr rrs rsa rsb rsd rsh rsi rsr rss saa sab sad sah sai sar sas sba sbb sbd sbh sbi sbr sbs sda sdb sdd sdh sdi sdr sds sh- sha shb shd shh shi shr shs sia sib sid sih sii sir sis sr- sra srb srd srh sri srr srs ss- ssa ssb ssd ssh ssi ssr sss