a-a a-b a-i a-t aaa aab aad aai aar aas aat ab- aba abb abd abi abr abs abt ad- ada adb add adi adr ads adt ai- aia aib aid aii air ais ait ar- ara arb ard ari arr ars art as- asa asb asd asi asr ass ast at- ata atb atd ati atr ats att baa bab bad bai bar bas bat bba bbb bbd bbi bbr bbs bbt bda bdb bdd bdi bdr bds bdt bi- bia bib bid bii bir bis bit bra brb brd bri brr brs brt bsa bsb bsd bsi bsr bss bst bta btb btd bti btr bts btt daa dab dad dai dar das dat dba dbb dbd dbi dbr dbs dbt dda ddb ddd ddi ddr dds ddt di- dia dib did dii dir dis dit dra drb drd dri drr drs drt dsa dsb dsd dsi dsr dss dst dta dtb dtd dti dtr dts dtt i-d ia- iaa iab iad iai iar ias iat iba ibb ibd ibi ibr ibs ibt ida idb idd idi idr ids idt iia iib iid iii iir iis iit ir- ira irb ird iri irr irs irt is- isa isb isd isi isr iss ist ita itb itd iti its itt ra- raa rab rad rai rar ras rat rba rbb rbd rbi rbr rbs rbt rda rdb rdd rdi rdr rds rdt ria rib rid rii rir ris rit rra rrb rrd rri rrr rrs rrt rsa rsb rsd rsi rsr rss rst rta rtb rtd rti rtr rts rtt saa sab sad sai sar sas sat sba sbb sbd sbi sbr sbs sbt sda sdb sdd sdi sdr sds sdt sia sib sid sii sir sis sit sr- sra srb srd sri srr srs srt ss- ssa ssb ssd ssi ssr sss sst sta stb std sti str sts stt taa tab tad tai tar tas tat tba tbb tbd tbi tbr tbs tbt tda tdb tdd tdi tdr tds tdt tia tib tid tii tir tis tit tra trb trd tri trr trs trt tsa tsb tsd tsi tsr tss tst tta ttb ttd tti ttr tts ttt

a-ii aaaa aaab aaad aaai aaar aaas aaba aabb aabd aabi aabt aada aadi aads aadt aaib aaii aais aara aard aari aars aart aasa aasd aasi aass aast aata aatt abaa abab abad abai abar abas abat abb- abba abbb abbi abbr abbs abbt abda abdi abia abib abid abir abis abit abra abri abrs abs- absa absd absi abss abta abts adaa adab adad adai adar adas adat adba adbi adda addd addi addr adds adia adib adir adis adit adra adrs adsa adsi adsr adss adst adta adts aiai aias aiba aida aidb aidi aidr aids aidt aiia aiib aiid aiir aira aird airi airs airt aisa aisb aisd aisi aisr aist aita aiti aitr aits aitt arab arad arai arar aras arat arba arbi arbs arda ardi ards aria arib arid arii aris arit arr- arra arri arrr arrs arrt ars- arsa arsd arsi arst arta arti artr arts asaa asab asad asai asar asas asat asba asda asds asia asii asir asis asit asra asrs assa assd assi assr asss asst asta astb asti astr asts at-t ataa atab atad atai atar atas atat atbs atdi atdt atia atid atis atit atra atri atsb atsi atst atta atti attr atts ba-i baaa baad baar baas baat baba babb babi babr babs bada badb badd badi badr bads baia baib baid bair bais bait bar- bara barb bard bari barr bars bart basa basi bass bast bata bati bats batt bbad bbas bbbb bbbs bbdd bd-r bdii bdsd biad biar bias biat biba bibb bibi bibs bida bidi bidr bids biis bira birb bird biri birr birs birt bis- bisa bisd biss bist bita bitd bits bitt brab brad brai bras brat brda brds brdt bria brid bris brit brrr brrs brsb brsr brst bsaa bsas bsat bsbd bsra bsrd bssd bsts btaa btdt btrt btss bttb daab daad daar daas daba dabb dabs dabt dada dadi dads daia daid dair dais dait dara darb dard dari darr dars dart dasa dasb dasd dasi dass dast data dati datr dats datt dbar dbas dbit dbrs dbsa dbss dbtt dddd ddss ddts dia- diab diad diar dias diat diba dibb dibs dida didi dids diii diis dira dird dirr dirs dirt dis- disa disd disi diss dist dita diti dits ditt draa drab drad drar dras drat drba drda drib drit drra drrs drsa dsba dsda dsdr dsri dsrr dssa dssi dsst dsts dtaa dtss iaaa iaai iaas iaat iaba iadb iadt iaia iais iara iars iart iasa iasi iasr iata iati ibad ibar ibas ibat ibia ibid ibis ibra ibrd ibri ibsa ibss ibtb ibts idad idar idas idat idda idia idid idir idis idra idsa idss idta idts iias iida iiii iiis iiit iira iirs iisd iisi iisr iist iita iitr iitt irad irai irar iras irda irds iri- iria irid iris irra irri irrs irsa irta irti irts is-a isad isai isar isas isat isba isbd isbt isda isdb isds isia isis isit isra isri issa issi issr isss ista istd isti istr ists itaa itai itar itas itat itbs itia itis itra itri itrs itsa itsi itta raab raad raas raat raba rabb rabi rabs rada radd radr rads radt raia raid raii rair rais rait rara rarb rari rars rasa rasd rasi rass rast rata rati rats ratt rbbb rbbr rbbs rbds rbis rbsd rbss rbst rdas riaa riab riad riai rias riat rib- riba ribs rida ridd ridi rids riia riis riri rirs risa risd risi riss rist rita riti rits ritt rrad rras rrat rrrr rsaa rsai rsbi rsdd rsds rsid rsis rssa rsts rtai rtas rtdt rtss rtts s-ib s-ii saab saad saar saas saat saba sabb sabi sabr sabs sada sadb sadd sadi sadr sads sadt saia said sair sais sait sara sard sari sarr sars sart