a-a a-b a-i a-t aaa aab aad aai aan aao aap aas aat ab- aba abb abd abi abn abo abp abs abt ad- ada adb add adi adn ado adp ads adt ai- aia aib aid aii ain aio aip ais ait an- ana anb and ani ann ano anp ans ant aoa aob aod aoi aon aoo aop aos aot ap- apa apb apd api apn apo app aps apt as- asa asb asd asi asn aso asp ass ast at- ata atb atd ati atn ato atp ats att b-p baa bab bad bai ban bao bap bas bat bba bbb bbd bbi bbn bbo bbp bbs bbt bda bdb bdd bdi bdo bdp bds bdt bi- bia bib bid bii bin bio bip bis bit bna bnb bnd bni bnn bno bnp bns bnt boa bob bod boi bon boo bop bos bot bpa bpb bpd bpi bpn bpo bpp bps bpt bsa bsb bsd bsi bsn bso bsp bss bst bta btb btd bti btn bto btp bts btt daa dab dad dai dan dao dap das dat dba dbb dbd dbi dbn dbo dbp dbs dbt dda ddb ddd ddi ddn ddo ddp dds ddt di- dia dib did dii din dio dip dis dit dna dnb dnd dni dnn dno dnp dns dnt doa dob dod doi don doo dop dos dot dpa dpb dpd dpi dpn dpo dpp dps dpt dsa dsb dsd dsi dsn dso dsp dss dst dta dtb dtd dti dtn dto dtp dts dtt i-d ia- iaa iab iad iai ian iao iap ias iat iba ibb ibd ibi ibn ibo ibp ibs ibt ida idb idd idi idn ido idp ids idt iia iib iid iii iin iio iip iis iit in- ina inb ind ini inn ino inp ins int io- ioa iob iod ioi ion ioo iop ios iot ipa ipb ipd ipi ipn ipo ipp ips ipt is- isa isb isd isi isn iso isp iss ist ita itb itd iti itn ito itp its itt n-i naa nab nad nai nan nao nap nas nat nba nbb nbd nbi nbn nbo nbp nbs nbt nda ndb ndd ndi ndn ndo ndp nds ndt nia nib nid nii nin nio nip nis nit nna nnb nni nnn nno nnp nns nnt no- noa nob nod noi non noo nop nos not npa npb npd npi npn npo npp nps npt nsa nsb nsd nsi nsn nso nsp nss nst nta ntb ntd nti ntn nto ntp nts ntt o-i oaa oab oad oai oan oao oap oas oat ob- oba obb obd obi obn obo obp obs obt oda odb odd odi odn odo odp ods odt oia oib oid oii oin oio oip ois oit on- ona onb ond oni onn ono onp ons ont oo- ooa oob ood ooi oon ooo oop oos oot op- opa opb opd opi opn opo opp ops opt os- osa osb osd osi osn oso osp oss ost ot- ota otb otd oti otn oto otp ots ott p-p paa pab pad pai pan pao pap pas pat pba pbb pbd pbi pbn pbo pbp pbs pbt pda pdb pdd pdi pdn pdo pdp pds pdt pia pib pid pii pin pio pip pis pit pn- pna pnb pnd pni pnn pno pnp pns pnt poa pob pod poi pon poo pop pos pot ppa ppb ppd ppi ppn ppo ppp pps ppt ps- psa psb psd psi psn pso psp pss pst pt- pta ptb ptd pti ptn pto ptp pts ptt saa sab sad sai san sao sap sas sat sba sbb sbd sbi sbn sbo sbp sbs sbt sda sdb sdd sdi sdn sdo sdp sds sdt sia sib sid sii sin sio sip sis sit sna snb snd sni snn sno snp sns snt soa sob sod soi son soo sop sos sot spa spb spd spi spn spo spp sps spt ss- ssa ssb ssd ssi ssn sso ssp sss sst sta stb std sti stn sto stp sts stt taa tab tad tai tan tao tap tas tat tba tbb tbd tbi tbn tbo tbp tbs tbt tda tdb tdd tdi tdn tdo tdp tds tdt tia tib tid tii tin tio tip tis tit tna tnb tnd tni tnn tno tnp tns tnt to- toa tob tod toi ton too top tos tot tpa tpb tpd tpi tpn tpo tpp tps tpt tsa tsb tsd tsi tsn tso tsp tss tst tta ttb ttd tti ttn tto ttp tts ttt