a-a a-b a-i aaa aab aai aan aao aar aas ab- aba abb abi abn abo abr abs ai- aia aib aii ain aio air ais an- ana anb ani ann ano anr ans aoa aob aoi aon aoo aor aos ar- ara arb ari arn aro arr ars as- asa asb asi asn aso asr ass baa bab bai ban bao bar bas bba bbb bbi bbn bbo bbr bbs bi- bia bib bii bin bio bir bis bna bnb bni bnn bno bnr bns boa bob boi bon boo bor bos bra brb bri brn bro brr brs bsa bsb bsi bsn bso bsr bss ia- iaa iab iai ian iao iar ias iba ibb ibi ibn ibo ibr ibs iia iib iii iin iio iir iis in- ina inb ini inn ino inr ins io- ioa iob ioi ion ioo ior ios ir- ira irb iri irn iro irr irs is- isa isb isi isn iso isr iss n-i naa nab nai nan nao nar nas nba nbb nbi nbn nbo nbr nbs nia nib nii nin nio nir nis nna nnb nni nnn nno nns no- noa nob noi non noo nor nos nra nrb nri nrn nro nrr nrs nsa nsb nsi nsn nso nsr nss o-i oaa oab oai oan oao oar oas ob- oba obb obi obn obo obr obs oia oib oii oin oio oir ois on- ona onb oni onn ono onr ons oo- ooa oob ooi oon ooo oor oos or- ora orb ori orn oro orr ors os- osa osb osi osn oso osr oss ra- raa rab rai ran rao rar ras rba rbb rbi rbn rbo rbr rbs ria rib rii rin rio rir ris rna rnb rni rnn rno rnr rns roa rob roi ron roo ror ros rra rrb rri rrn rrr rrs rsa rsb rsi rsn rso rsr rss saa sab sai san sao sar sas sba sbb sbi sbn sbo sbr sbs sia sib sii sin sio sir sis sna snb sni snn sno snr sns soa sob soi son soo sor sos sr- sra srb sri srn sro srr srs ss- ssa ssb ssi ssn sso ssr sss

-ana a-ii aaaa aaab aaai aaan aaar aaas aaba aabb aabi aaib aaii aain aais aana aani aaon aaoo aara aari aaro aars aasa aasi aass abaa abab abai aban abar abas abb- abba abbb abbi abbo abbr abbs abia abib abin abir abis aboa abob abon aboo abor abos abra abri abro abrs abs- absa absi abss aiai aian aias aiba aibn aibo aiia aiib aiin aiir aina aini aino ains aioi aion aira airi airo airs aisa aisb aisi aiso aisr ana- anaa anab anai anan anao anar anas anba anbb anbi anbo ania anib anin anio anir anis anna annb anni anno anns ano- anoa anon anor anos anri ansa ansi anso aoba aonb aono aora aorb aorn aors aoss arab arai aran arar aras arba arbi arbs aria arib arii arin ario aris arna arni arno arns aroa arob aroi aron aroo aror aros arr- arra arri arro arrr arrs ars- arsa arsi arso asaa asab asai asan asao asar asas asba asbo asia asii asin asio asir asis asni asno asob asoi ason asor asos asra asro asrs assa assi assn asso assr asss ba-i baaa baan baar baas baba babb babi babo babr babs baia baib bain baio bair bais bana bani bann bano banr bans baon baos bar- bara barb bari barn baro barr bars basa basi baso bass bbas bbbb bbbs bbin bian biao biar bias biba bibb bibi bibo bibs biin biis bin- bina bini binn bino bins bio- bioi bion bios bira birb biri birn biro birr birs bis- bisa biso biss bnai bnas bnib bnin bnor bnrr bnss boab boai boan boar boas boba bobb bobi bobo bobs boi- boii boin bois bona boni bonn bono bons boob boon boor boos bor- bora bori born boro borr bors bosa bosi bosn boso boss brab brai bran brao bras bria brin brio bris brna brno brns broa brob bron broo bror bros brrr brrs brsb brsr bsaa bsas bsin bsns bson bsos bsra i-no iaaa iaai iaas iaba iaia iain iais iana ians iara iars iasa iasi iaso iasr iban ibar ibas ibia ibis ibns ibon ibos ibra ibri ibro ibsa ibsn ibss iias iiii iiio iiis iino iioi iioo iios iira iirs iisi iisr inab inai inan inao inar inas inba inbo inia inis inna inni inno innr inns ino- inoi inon inor inos inra inri inro inrs insa inso inss ioan ioba iobi ioii ioio iona ioni ionn iono ions iooi iooo ioos iora iori iors ioso irai iran irao irar iras iri- iria irin irio iris irna irob iron irra irri irrs irsa is-a isai isan isao isar isas isba isbn isia isin isis isna isno iso- ison isor isos isra isri issa issi isso issr isss n-ii naaa naab naai naan naar naas naba nabi nabo nabs naia naib nain naio nair nais nan- nana nanb nani nann nano nans naoi naor naos nara nari narn naro narr nars nas- nasa nasb nasi naso nasr nass nbaa nbar nbas nbbo nbia niab nian nias nibi nibo nibs niia niir nina nini nino nins nion nioo nios nira niro nirs nisa nisi niso niss nnnn nnos nnsa nnss noaa noba nobi nobo nobs noia noib noin noio noir nois non- nona noni nonn nono nons noo- noob noon nooo noor noos nor- nora norb nori norn noro norr nors nos- nosa noss nrab nras nrna nron nrsa nsaa nsai nsar nsbo nsin nsis nsna nsnr nsos nsra nssa nssb nsso nssr nsss oais oara oars oasi oass obai oban obas obba obbo obia obin obis oboi obon obor obos obra obri obro obsn obsr obss oiba oiii oins oion oios oira onab onan onar onas onia onir onis onna onni onno onon onor onos onra onso ooaa ooba oobi ooia oona