a-a a-b a-i a-t aaa aab aad aai aan aao aas aat ab- aba abb abd abi abn abo abs abt ad- ada adb add adi adn ado ads adt ai- aia aib aid aii ain aio ais ait an- ana anb and ani ann ano ans ant aoa aob aod aoi aon aoo aos aot as- asa asb asd asi asn aso ass ast at- ata atb atd ati atn ato ats att baa bab bad bai ban bao bas bat bba bbb bbd bbi bbn bbo bbs bbt bda bdb bdd bdi bdo bds bdt bi- bia bib bid bii bin bio bis bit bna bnb bnd bni bnn bno bns bnt boa bob bod boi bon boo bos bot bsa bsb bsd bsi bsn bso bss bst bta btb btd bti btn bto bts btt daa dab dad dai dan dao das dat dba dbb dbd dbi dbn dbo dbs dbt dda ddb ddd ddi ddn ddo dds ddt di- dia dib did dii din dio dis dit dna dnb dnd dni dnn dno dns dnt doa dob dod doi don doo dos dot dsa dsb dsd dsi dsn dso dss dst dta dtb dtd dti dtn dto dts dtt i-d ia- iaa iab iad iai ian iao ias iat iba ibb ibd ibi ibn ibo ibs ibt ida idb idd idi idn ido ids idt iia iib iid iii iin iio iis iit in- ina inb ind ini inn ino ins int io- ioa iob iod ioi ion ioo ios iot is- isa isb isd isi isn iso iss ist ita itb itd iti itn ito its itt n-i naa nab nad nai nan nao nas nat nba nbb nbd nbi nbn nbo nbs nbt nda ndb ndd ndi ndn ndo nds ndt nia nib nid nii nin nio nis nit nna nnb nni nnn nno nns nnt no- noa nob nod noi non noo nos not nsa nsb nsd nsi nsn nso nss nst nta ntb ntd nti ntn nto nts ntt o-i oaa oab oad oai oan oao oas oat ob- oba obb obd obi obn obo obs obt oda odb odd odi odn odo ods odt oia oib oid oii oin oio ois oit on- ona onb ond oni onn ono ons ont oo- ooa oob ood ooi oon ooo oos oot os- osa osb osd osi osn oso oss ost ot- ota otb otd oti otn oto ots ott saa sab sad sai san sao sas sat sba sbb sbd sbi sbn sbo sbs sbt sda sdb sdd sdi sdn sdo sds sdt sia sib sid sii sin sio sis sit sna snb snd sni snn sno sns snt soa sob sod soi son soo sos sot ss- ssa ssb ssd ssi ssn sso sss sst sta stb std sti stn sto sts stt taa tab tad tai tan tao tas tat tba tbb tbd tbi tbn tbo tbs tbt tda tdb tdd tdi tdn tdo tds tdt tia tib tid tii tin tio tis tit tna tnb tnd tni tnn tno tns tnt to- toa tob tod toi ton too tos tot tsa tsb tsd tsi tsn tso tss tst tta ttb ttd tti ttn tto tts ttt