a-a a-b a-i aaa aab aad aai aan aar aas aau ab- aba abb abd abi abn abr abs abu ad- ada adb add adi adn adr ads adu ai- aia aib aid aii ain air ais aiu an- ana anb and ani ann anr ans anu ar- ara arb ard ari arn arr ars aru as- asa asb asd asi asn asr ass asu au- aua aub aud aui aun aur aus b-u baa bab bad bai ban bar bas bau bba bbb bbd bbi bbn bbr bbs bbu bda bdb bdd bdi bdr bds bdu bi- bia bib bid bii bin bir bis biu bna bnb bnd bni bnn bnr bns bnu bra brb brd bri brn brr brs bru bsa bsb bsd bsi bsn bsr bss bsu bua bub bud bui bun bur bus buu daa dab dad dai dan dar das dau dba dbb dbd dbi dbn dbr dbs dbu dda ddb ddd ddi ddn ddr dds ddu di- dia dib did dii din dir dis diu dna dnb dnd dni dnn dnr dns dra drb drd dri drn drr drs dru dsa dsb dsd dsi dsn dsr dss dsu dua dub dud dui dun dur dus i-d ia- iaa iab iad iai ian iar ias iau iba ibb ibd ibi ibn ibr ibs ibu ida idb idd idi idn idr ids idu iia iib iid iii iin iir iis iiu in- ina inb ind ini inn inr ins inu ir- ira irb ird iri irn irr irs iru is- isa isb isd isi isn isr iss isu iu- iua iub iud iui iur ius n-i naa nab nad nai nan nar nas nau nba nbb nbd nbi nbn nbr nbs nbu nda ndb ndd ndi ndn ndr nds ndu nia nib nid nii nin nir nis niu nna nnb nni nnn nns nnu nra nrb nrd nri nrn nrr nrs nru nsa nsb nsd nsi nsn nsr nss nsu nua nub nud nui nun nur nus nuu ra- raa rab rad rai ran rar ras rau rba rbb rbd rbi rbn rbr rbs rbu rda rdb rdd rdi rdn rdr rds rdu ria rib rid rii rin rir ris rna rnb rnd rni rnn rnr rns rnu rra rrb rrd rri rrn rrr rrs rru rsa rsb rsd rsi rsn rsr rss rsu rua rub rud rui run rur rus ruu saa sab sad sai san sar sas sau sba sbb sbd sbi sbn sbr sbs sbu sda sdb sdd sdi sdn sdr sds sdu sia sib sid sii sin sir sis siu sna snb snd sni snn snr sns snu sr- sra srb srd sri srn srr srs ss- ssa ssb ssd ssi ssn ssr sss ssu sua sub sud sui sun sur sus suu ua- uaa uab uad uai uan uar uas uau uba ubb ubi ubn ubr ubs ubu uda udb udd udi udn udr uds udu uia uib uid uii uin uir uis uiu un- una unb und uni unn unr uns unu ur- ura urb urd uri urn urr urs uru usa usb usd usi usn usr uss usu uua uun uur uus uuu