a-a a-b a-i aaa aab aai aan aao aap aar ab- aba abb abi abn abo abp abr ai- aia aib aii ain aio aip air an- ana anb ani ann ano anp anr aoa aob aoi aon aoo aop aor ap- apa apb api apn apo app apr ar- ara arb ari arn aro arp arr b-p baa bab bai ban bao bap bar bba bbb bbi bbn bbo bbp bbr bi- bia bib bii bin bio bip bir bna bnb bni bnn bno bnp bnr boa bob boi bon boo bop bor bpa bpb bpi bpn bpo bpp bpr bra brb bri brn bro brp brr ia- iaa iab iai ian iao iap iar iba ibb ibi ibn ibo ibp ibr iia iib iii iin iio iip iir in- ina inb ini inn ino inp inr io- ioa iob ioi ion ioo iop ior ipa ipb ipi ipn ipo ipp ipr ir- ira irb iri irn iro irp irr n-i naa nab nai nan nao nap nar nba nbb nbi nbn nbo nbp nbr nia nib nii nin nio nip nir nna nnb nni nnn nno nnp no- noa nob noi non noo nop nor npa npb npi npn npo npp npr nra nrb nri nrn nro nrp nrr o-i oaa oab oai oan oao oap oar ob- oba obb obi obn obo obp obr oia oib oii oin oio oip oir on- ona onb oni onn ono onp onr oo- ooa oob ooi oon ooo oop oor op- opa opb opi opn opo opp opr or- ora orb ori orn oro orp orr p-p paa pab pai pan pao pap par pba pbb pbi pbn pbo pbp pbr pia pib pii pin pio pip pir pn- pna pnb pni pnn pno pnp pnr poa pob poi pon poo pop por ppa ppb ppi ppn ppo ppp ppr pra prb pri prn pro prp prr ra- raa rab rai ran rao rap rar rba rbb rbi rbn rbo rbp rbr ria rib rii rin rio rip rir rna rnb rni rnn rno rnp rnr roa rob roi ron roo rop ror rpa rpb rpi rpn rpo rpp rpr rra rrb rri rrn rrp rrr

-ana a-ii aaaa aaab aaai aaan aaap aaar aaba aabb aabi aabp aaib aaii aain aana aani aanp aaon aaoo aapa aapi aapo aara aari aaro aarp abaa abab abai aban abap abar abb- abba abbb abbi abbo abbr abia abib abin abir aboa abob abon aboo abor abpa abpi abpn abpp abpr abra abri abro aiai aian aiba aibn aibo aiia aiib aiin aiir aina aini aino aioi aion aipa aipi aira airi airo airp ana- anaa anab anai anan anao anap anar anba anbb anbi anbo ania anib anin anio anip anir anna annb anni anno ano- anoa anon anor anp- anpa anpi anpp anpr anri aoba aonb aono aopo aora aorb aorn apai apan apao apap apar apba apbr api- apia apin apio apip apna apni apno apo- apon apoo apop apor appa appr apra apri aprn apro arab arai aran arap arar arba arbi aria arib arii arin ario arip arna arni arno aroa arob aroi aron aroo aror arpa arpi arr- arra arri arro arrr ba-i baaa baan baar baba babb babi babo babr baia baib bain baio bair bana bani bann bano banp banr baon bapa bapi bapp bar- bara barb bari barn baro barr bbbb bbin bbpr bian biao biap biar biba bibb bibi bibo biin bin- bina bini binn bino bio- bioi bion bipa bipp bira birb biri birn biro birr bnai bnib bnin bnor bnpp bnrr boab boai boan boar boba bobb bobi bobo boi- boii boin bona boni bonn bono boob boon boop boor bopa bopp bor- bora bori born boro borr bpai brab brai bran brao bria brin brio brna brno broa brob bron broo bror brrr i-no iaaa iaai iaap iaba iaia iain iana iapa iapp iara iban ibar ibia ibon ibra ibri ibro iiii iiio iino iioi iioo iiop iipa iira inab inai inan inao inap inar inba inbo inia inna inni inno innr ino- inoi inon inor inp- inpa inpi inpp inra inri inro ioan ioba iobi ioii ioio iona ioni ionn iono iooi iooo iora iori ipan ipba ipin ipna ipop ippa ippo ippr ipri irai iran irao irap irar irbp iri- iria irin irio irip irna irob iron irop irpa irra irri n-ii naaa naab naai naan naar naba nabi nabo naia naib nain naio naip nair nan- nana nanb nani nann nano nanp naoi naor napa napb napi napo napp nara nari narn naro narp narr nbaa nbap nbar nbbo nbia nbpa nbpp niab nian nibi nibo niia niip niir nina nini nino nion nioo nipa nipr nira niro nnnn nnpi nnpr noaa noap noba nobi nobo noia noib noin noio noir non- nona noni nonn nono noo- noob noon nooo noop noor nor- nora norb nori norn noro norr npap npin nppa npra npri nrab nrap nrna nron nrpn oapi oara obai oban obba obbo obia obin oboi obon obor obra obri obro oiba oiii oion oira onab onan onar onia onir onna onni onno onon onor onra ooaa ooba oobi ooia oona oooo oora opan opap opar opia opii opin opio opo- opon opor oppa oppi oppo opra orab orai oran orao orar orba orbb orbi orbo ori- oria orin orio orna orni orno oro- oron oror orpi orra orri orro paan paap paar paba paia paib pain paio paip pair pan- pana pani pann pano paon papa papb papi papp papr par- para pari parn paro parp parr pban pbar pbpa piai pian piao pibb pibi piia piip pina pini pinn pino pinp piob pion pipa pipi pipo pipp pira piri pirn piro pirr pnar pnin pnon pnpo pnpp pnra pnro poan poar poba pobo poia poin poio pona poni pono ponp poon poop poor pop- popa popi popo popp pora porb pori porn poro porr ppan ppap ppar ppib ppoa pppa pppn pppo