a-a a-b a-i aaa aab aaf aai aan aao aar ab- aba abb abf abi abn abo abr af- afa afb aff afi afn afo afr ai- aia aib aif aii ain aio air an- ana anb anf ani ann ano anr aoa aob aof aoi aon aoo aor ar- ara arb arf ari arn aro arr baa bab baf bai ban bao bar bba bbb bbf bbi bbn bbo bbr bfa bfb bff bfi bfn bfo bfr bi- bia bib bif bii bin bio bir bna bnb bnf bni bnn bno bnr boa bob bof boi bon boo bor bra brb brf bri brn bro brr faa fab faf fai fan fao far fba fbb fbf fbi fbn fbo fbr ffa fff ffi ffn ffo ffr fia fib fif fii fin fir fna fnb fnf fni fnn fnr foa fob fof foi fon foo for fra frb frf fri frn fro frr i-f ia- iaa iab iaf iai ian iao iar iba ibb ibf ibi ibn ibo ibr ifa ifb iff ifi ifn ifo ifr iia iib iif iii iin iio iir in- ina inb inf ini inn ino inr io- ioa iob iof ioi ion ioo ior ir- ira irb irf iri irn iro irr n-i naa nab naf nai nan nao nar nba nbb nbf nbi nbn nbo nbr nfa nfb nff nfi nfn nfo nfr nia nib nif nii nin nio nir nna nnb nnf nni nnn nno no- noa nob nof noi non noo nor nra nrb nrf nri nrn nro nrr o-i oaa oab oaf oai oan oao oar ob- oba obb obf obi obn obo obr of- ofa ofb off ofi ofn ofo ofr oia oib oif oii oin oio oir on- ona onb onf oni onn ono onr oo- ooa oob oof ooi oon ooo oor or- ora orb orf ori orn oro orr ra- raa rab raf rai ran rao rar rba rbb rbf rbi rbn rbo rbr rfa rfb rff rfi rfn rfo rfr ria rib rif rii rin rio rir rna rnb rni rnn rno rnr roa rob rof roi ron roo ror rra rrb rrf rri rrn rrr

-ana a-ii aaaa aaab aaaf aaai aaan aaar aaba aabb aabi aafa aafb aaff aafi aaib aaii aain aana aani aaon aaoo aara aari aaro abaa abab abaf abai aban abar abb- abba abbb abbi abbo abbr abff abia abib abin abir aboa abob abof abon aboo abor abra abri abro afaa afan afao afar affa affi affo afia afib afif afin afir afoa afoo afor afr- afra afri afro aiai aian aiba aibn aibo aiff aiia aiib aiin aiir aina aini aino aioi aion aira airi airo ana- anaa anab anai anan anao anar anba anbb anbi anbo anfa anfo ania anib anif anin anio anir anna annb anni anno ano- anoa anon anor anri aoba aonb aono aora aorb aorn arab araf arai aran arar arba arbi arfa arfb arff aria arib arif arii arin ario arna arni arno aroa arob aroi aron aroo aror arr- arra arri arro arrr ba-i baaa baaf baan baar baba babb babi babo babr baff bafo baia baib bain baio bair bana bani bann bano banr baon bar- bara barb barf bari barn baro barr bbbb bbfn bbin biaf bian biao biar biba bibb bibi bibo bifa biff bifi biin bin- bina bini binn bino bio- bioi bion bira birb biri birn biro birr bnai bnib bnin bnor bnrr boab boai boan boar boba bobb bobi bobo bofa boff boi- boii boin bona boni bonn bono boob boof boon boor bor- bora borf bori born boro borr brab braf brai bran brao bria brin brio brna brno broa brob bron broo bror brrr faaa faan faba fabi fabo fafa faff fafi fafo fain faio fair fana fani fano faon fara farb faro farr fbar ffar ffff ffii ffrr fiaa fiaf fian fiar fiba fifa fiff fifi fifo fiii fina fini finn fino fion fior fira firn fnar foaf foan foar foba fofo foia foin fono foof foon for- fora forb fori forn foro forr frab fran fria frib frin frio frob fron i-no iaaa iaai iaba iaff iaia iain iana iara iban ibar ibfi ibia ibon ibra ibri ibro ifaa ifan ifao ifar ifbb ifni ifno ifnr ifor ifra ifrb ifrf ifri iifa iiii iiio iino iioi iioo iira inab inaf inai inan inao inar inba inbo infa infi info inia inna inni inno innr ino- inoi inon inor inra inri inro ioan ioba iobi ioii ioio iona ioni ionn iono ioof iooi iooo iora iori iraf irai iran irao irar iri- iria irin irio irna irob iron irra irri n-ii naaa naab naai naan naar naba nabf nabi nabo nafa naff nafi nafo naia naib naif nain naio nair nan- nana nanb nani nann nano naoi naor nara narf nari narn naro narr nbaa nbaf nbar nbbo nbfa nbia nfaa nfff nfia nfib nfon nfra niab niaf nian nibi nibo nifa niff niia niir nina nini nino nion nioo nira niro nnnn noaa noba nobi nobo nofi noia noib noif noin noio noir non- nona noni nonn nono noo- noob noon nooo noor nor- nora norb norf nori norn noro norr nrab nrna nron oafo oara obai oban obba obbo obia obin oboi obon obor obra obri obro ofan off- offa offo offr ofna ofno ofor ofra oiba oiii oion oira onab onan onar onia onir onna onni onno onon onor onra ooaa ooba oobi ooff ooia oona oooo oora orab orai oran orao orar orba orbb orbi orbo orff orfi ori- oria orif orin orio orna orni orno oro- orof oron oror orra orri orro raab raaf raan raba rabb rabi rabo rafa raff rafi raia raif raii rain rair rana rani rann rano raob rara rarb rarf rari raro rbaf rbbb rbbr riaa riab riai rian rib- riba ribo rifa riff riia riif riin rina rinf rinn rino rion riri rnaf rnai rnbr rnin roab roaf roan roar rob-