a-a a-b a-i aaa aab aaf aai aan aar aas ab- aba abb abf abi abn abr abs af- afa afb aff afi afn afr afs ai- aia aib aif aii ain air ais an- ana anb anf ani ann anr ans ar- ara arb arf ari arn arr ars as- asa asb asf asi asn asr ass baa bab baf bai ban bar bas bba bbb bbf bbi bbn bbr bbs bfa bfb bff bfi bfn bfr bfs bi- bia bib bif bii bin bir bis bna bnb bnf bni bnn bnr bns bra brb brf bri brn brr brs bsa bsb bsf bsi bsn bsr bss faa fab faf fai fan far fas fba fbb fbf fbi fbn fbr fbs ffa fff ffi ffn ffr ffs fia fib fif fii fin fir fis fna fnb fnf fni fnn fnr fns fra frb frf fri frn frr frs fsa fsb fsf fsi fsn fsr fss i-f ia- iaa iab iaf iai ian iar ias iba ibb ibf ibi ibn ibr ibs ifa ifb iff ifi ifn ifr ifs iia iib iif iii iin iir iis in- ina inb inf ini inn inr ins ir- ira irb irf iri irn irr irs is- isa isb isf isi isn isr iss n-i naa nab naf nai nan nar nas nba nbb nbf nbi nbn nbr nbs nfa nfb nff nfi nfn nfr nfs nia nib nif nii nin nir nis nna nnb nnf nni nnn nns nra nrb nrf nri nrn nrr nrs nsa nsb nsf nsi nsn nsr nss ra- raa rab raf rai ran rar ras rba rbb rbf rbi rbn rbr rbs rfa rfb rff rfi rfn rfr rfs ria rib rif rii rin rir ris rna rnb rni rnn rnr rns rra rrb rrf rri rrn rrr rrs rsa rsb rsf rsi rsn rsr rss saa sab saf sai san sar sas sba sbb sbf sbi sbn sbr sbs sfa sfb sff sfi sfn sfr sfs sia sib sif sii sin sir sis sna snb snf sni snn snr sns sr- sra srb srf sri srn srr srs ss- ssa ssb ssf ssi ssn ssr sss

-ana a-ii aaaa aaab aaaf aaai aaan aaar aaas aaba aabb aabi aafa aafb aaff aafi aaib aaii aain aais aana aani aara aari aars aasa aasf aasi aass abaa abab abaf abai aban abar abas abb- abba abbb abbi abbr abbs abff abia abib abin abir abis abra abri abrs abs- absa absf absi abss afaa afan afar afbs affa affi affs afia afib afif afin afir afis afr- afra afri afrs afsa afsb aiai aian aias aiba aibn aiff aifs aiia aiib aiin aiir aina aini ains aira airi airs aisa aisb aisi aisr ana- anaa anab anai anan anar anas anba anbb anbi anfa ania anib anif anin anir anis anna annb anni anns anri ansa ansf ansi arab araf arai aran arar aras arba arbi arbs arfa arfb arff arfs aria arib arif arii arin aris arna arni arns arr- arra arri arrr arrs ars- arsa arsi asaa asab asaf asai asan asar asas asba asfa asfi asia asif asii asin asir asis asni asra asrs assa assi assn assr asss ba-i baaa baaf baan baar baas baba babb babi babr babs baff baia baib bain bair bais bana bani bann banr bans bar- bara barb barf bari barn barr bars basa basf basi bass bbas bbbb bbbs bbfn bbin bfas bffs bfsi bfsr biaf bian biar bias biba bibb bibi bibs bifa biff bifi biin biis bin- bina bini binn bins bira birb biri birn birr birs bis- bisa biss bnai bnas bnib bnin bnrr bnss brab braf brai bran bras bria brin bris brna brns brrr brrs brsb brsr bsaa bsas bsfa bsff bsfs bsin bsns bsra faaa faan faas faba fabi fabs fafa faff fafi fain fair fais fana fani fans fara farb farr fars fasa fasi fasn fass fbar fbis fbrs ffar ffff ffii ffrr ffsa ffss fiaa fiaf fian fiar fias fiba fibs fifa fiff fifi fiii fina fini finn fins fira firn firs fisa fisi fiss fnar fnrs frab fran fras fria frib frin fris frns frsb fsai fsas fsfi fsia fsra fssa fssf iaaa iaai iaas iaba iaff iaia iain iais iana ians iara iars iasa iasi iasr iban ibar ibas ibfi ibia ibis ibns ibra ibri ibsa ibsf ibsn ibss ifaa ifan ifar ifas ifbb ifis ifni ifnr ifns ifra ifrb ifrf ifri ifsa ifsb iias iifa iiii iiis iira iirs iisi iisr inab inaf inai inan inar inas inba infa infi infs inia inis inna inni innr inns inra inri inrs insa inss iraf irai iran irar iras iri- iria irin iris irna irra irri irrs irsa irsf is-a isaf isai isan isar isas isba isbn isfa isia isin isis isna isra isri issa issf issi issr isss n-ii naaa naab naai naan naar naas naba nabf nabi nabs nafa naff nafi nafs naia naib naif nain nair nais nan- nana nanb nani nann nans nara narf nari narn narr nars nas- nasa nasb nasf nasi nasr nass nbaa nbaf nbar nbas nbfa nbia nfaa nfas nfff nfia nfib nfra nfrs nfsr niab niaf nian nias nibi nibs nifa niff niia niir nina nini nins nira nirs nisa nisi niss nnnn nnsa nnss nrab nras nrna nrsa nsaa nsai nsar nsfs nsin nsis nsna nsnr nsra nssa nssb nssf nssr nsss raab raaf raan raas raba rabb rabi rabs rafa raff rafi raia raif raii rain rair rais rana rani rann rans rara rarb rarf rari rars rasa rasi rass rbaf rbbb rbbr rbbs rbis rbss riaa riab riai rian rias rib- riba ribs rifa riff rifs riia riif riin riis rina rinf rinn riri rirs risa risi riss rnaf rnai rnas rnbr rnin rras rrif rrna rrrr rsaa rsaf rsai rsbi rsis rsna rsnn rsnr rssa s-ib s-ii saab saaf saan saar saas saba sabb sabi sabr sabs safa safb saff safi safr saia saif sain sair