-er a-a a-b a-i aaa aab aae aag aai aak aan aao aap aar aas ab- aba abb abe abg abi abk abn abo abp abr abs aea aeb aee aeg aei aek aen aeo aep aer aes ag- aga agb age agg agi agk agn ago agp agr ags ai- aia aib aie aig aii aik ain aio aip air ais aka akb ake akg aki akk akn ako akp akr aks an- ana anb ane ang ani ank ann ano anp anr ans aoa aob aoe aog aoi aok aon aoo aop aor aos ap- apa apb ape apg api apk apn apo app apr aps ar- ara arb are arg ari ark arn aro arp arr ars as- asa asb ase asg asi ask asn aso asp asr ass b-p baa bab bae bag bai bak ban bao bap bar bas bba bbb bbe bbg bbi bbk bbn bbo bbp bbr bbs be- bea beb bee beg bei bek ben beo bep ber bes bga bgb bge bgg bgi bgk bgn bgo bgp bgr bgs bi- bia bib bie big bii bik bin bio bip bir bis bka bkb bke bkg bkk bkn bko bkp bkr bks bna bnb bne bng bni bnk bnn bno bnp bnr bns boa bob boe bog boi bok bon boo bop bor bos bpa bpb bpe bpg bpi bpn bpo bpp bpr bps bra brb bre brg bri brk brn bro brp brr brs bsa bsb bse bsg bsi bsk bsn bso bsp bsr bss eaa eab eae eag eai eak ean eao eap ear eas eba ebb ebe ebg ebi ebk ebn ebo ebp ebr ebs eea eeb eee eeg eek een eeo eep eer ees ega egb ege egg egi egn ego egp egr egs eia eib eie eig eii eik ein eio eip eir eis eka ekb eke ekg eki eko ekp ekr eks en- ena enb ene eng eni enk enn eno enp enr ens eo- eoa eob eoe eog eoi eok eon eoo eop eor eos ep- epa epb epe epg epi epn epo epp epr eps era erb ere erg eri erk ern ero erp err ers es- esa esb ese esg esi esk esn eso esp esr ess g-p gaa gab gae gag gai gak gan gao gap gar gas gba gbe gbg gbi gbk gbn gbo gbp gbr gbs ge- gea geb gee geg gei gek gen geo gep ger ges gga ggb ggg ggi ggn ggo ggp ggr ggs gia gib gie gig gii gik gin gio gip gir gis gka gkb gkn gko gkp gks gna gnb gne gni gnn gno gnp gnr gns goa gob goe gog goi gok gon goo gop gor gos gpa gpb gpe gpg gpi gpk gpn gpo gpp gpr gps gra grb gre grg gri grk grn gro grp grr grs gsa gsb gse gsg gsi gsk gsn gso gsp gsr gss ia- iaa iab iae iag iai ian iao iap iar ias iba ibb ibe ibg ibi ibk ibn ibo ibp ibr ibs ie- iea iee ieg iei iek ien iep ier ies iga igb ige igg igi igk ign igo igp igr igs iia iib iie iii iin iio iip iir iis ika ikb ike iki ikk iko ikr iks in- ina inb ine ing ini ink inn ino inp inr ins io- ioa iob ioe iog ioi ion ioo iop ior ios ipa ipb ipe ipg ipi ipn ipo ipp ipr ips ir- ira irb ire irg iri irk irn iro irp irr irs is- isa isb ise isg isi isk isn iso isp isr iss ka- kaa kab kae kag kai kak kan kao kap kar kas kba kbb kbe kbi kbk kbn kbo kbp kbr kbs ke- kea keb kee keg kei kek ken keo kep ker kes kga kgb kgi kgo kgp kgs kia kib kie kig kii kik kin kio kip kir kis kkb kke kki kkk kkn kkp kkr kks kn- kna kne kng kni knk knn kno knp knr koa kob koe kog koi kok kon koo kop kor kos kpa kpe kpi kpk kpn kpo kpp kpr kps kra krg kri krk krn kro krp krr krs ksa ksb kse ksg ksi ksk ksn kso ksp ksr kss n-i naa nab nae nag nai nak nan nao nap nar nas nba nbb nbe nbg nbi nbk nbn nbo nbp nbr nbs ne- nea neb nee neg nei nek nen neo nep ner nes nga ngb nge ngg ngi ngk ngn ngo ngp ngs nia nib nie nig nii nik nin nio nip nir nis nka nke nki nkk nkn nko nkp nkr nks nna nnb nne nng nni nnk nnn nno nnp nns no- noa nob noe nog noi nok non noo nop nor nos npa npb npe npg npi npn npo npp npr nps nra nrb nre nrg nri nrk nrn nro nrp nrr nrs nsa nsb nse nsg nsi nsk nsn nso nsp nsr nss o-i oaa oab oae oag oai oak oan oao oap oar oas ob- oba obb obe obg obi obk obn obo obp obr obs oea oeb oee oeg oei oen oeo oep oer oes oga oge ogg ogi ogn ogo ogp ogs oia oib oie oii oik oin oio oip oir ois oka okb oke okg oki okk oko okp okr oks on- ona onb one ong oni onk onn ono onp onr ons oo- ooa oob oog ooi ook oon ooo oop oor oos op- opa opb ope opg opi opk opn opo opp opr ops or- ora orb ore org ori ork orn oro orp orr ors os- osa osb ose osg osi osk osn oso osp osr oss p-p paa pab pae pag pai pak pan pao pap par pas pba pbb pbe pbg pbi pbk pbn pbo pbp pbr pbs pea peb pee peg pei pek pen peo pep per pes pga pgb pge pgg pgi pgk pgn pgo pgp pgr pgs pia pib