-er a-a a-b a-i aaa aab aae aaf aag aai aak aan aao aap aar aas ab- aba abb abe abf abg abi abk abn abo abp abr abs aea aeb aee aef aeg aei aek aen aeo aep aer aes af- afa afb afe aff afg afi afk afn afo afp afr afs ag- aga agb age agf agg agi agk agn ago agp agr ags ai- aia aib aie aif aig aii aik ain aio aip air ais aka akb ake akg aki akk akn ako akp akr aks an- ana anb ane anf ang ani ank ann ano anp anr ans aoa aob aoe aof aog aoi aok aon aoo aop aor aos ap- apa apb ape apf apg api apk apn apo app apr aps ar- ara arb are arf arg ari ark arn aro arp arr ars as- asa asb ase asf asg asi ask asn aso asp asr ass b-p baa bab bae baf bag bai bak ban bao bap bar bas bba bbb bbe bbf bbg bbi bbk bbn bbo bbp bbr bbs be- bea beb bee bef beg bei bek ben beo bep ber bes bfa bfb bfe bff bfg bfi bfn bfo bfp bfr bfs bga bgb bge bgf bgg bgi bgk bgn bgo bgp bgr bgs bi- bia bib bie bif big bii bik bin bio bip bir bis bka bkb bke bkf bkg bkk bkn bko bkp bkr bks bna bnb bne bnf bng bni bnk bnn bno bnp bnr bns boa bob boe bof bog boi bok bon boo bop bor bos bpa bpb bpe bpf bpg bpi bpn bpo bpp bpr bps bra brb bre brf brg bri brk brn bro brp brr brs bsa bsb bse bsf bsg bsi bsk bsn bso bsp bsr bss eaa eab eae eaf eag eai eak ean eao eap ear eas eba ebb ebe ebf ebg ebi ebk ebn ebo ebp ebr ebs eea eeb eee eef eeg eek een eeo eep eer ees ef- efa efb efe eff efg efi efo efp efr efs ega egb ege egf egg egi egn ego egp egr egs eia eib eie eif eig eii eik ein eio eip eir eis eka ekb eke ekf ekg eki eko ekp ekr eks en- ena enb ene enf eng eni enk enn eno enp enr ens eo- eoa eob eoe eof eog eoi eok eon eoo eop eor eos ep- epa epb epe epf epg epi epn epo epp epr eps era erb ere erf erg eri erk ern ero erp err ers es- esa esb ese esf esg esi esk esn eso esp esr ess faa fab fae faf fag fai fak fan fao fap far fas fba fbb fbe fbf fbg fbi fbk fbn fbo fbp fbr fbs fea feb fee fef feg fei fek fen feo fep fer fes ffa ffe fff ffg ffi ffk ffn ffo ffp ffr ffs fga fgb fge fgf fgg fgi fgn fgp fgr fgs fia fib fie fif fig fii fik fin fip fir fis fka fkb fkf fkg fki fkk fkp fna fnb fne fnf fng fni fnk fnn fnp fnr fns foa fob foe fof fog foi fok fon foo fop for fos fpa fpb fpe fpg fpi fpk fpn fpo fpp fpr fps fra frb fre frf frg fri frk frn fro frp frr frs fsa fsb fse fsf fsg fsi fsk fsn fso fsp fsr fss g-p gaa gab gae gaf gag gai gak gan gao gap gar gas gba gbe gbf gbg gbi gbk gbn gbo gbp gbr gbs ge- gea geb gee gef geg gei gek gen geo gep ger ges gfa gfb gfe gff gfi gfk gfo gfp gfr gfs gga ggb ggg ggi ggn ggo ggp ggr ggs gia gib gie gif gig gii gik gin gio gip gir gis gka gkb gkn gko gkp gks gna gnb gne gnf gni gnn gno gnp gnr gns goa gob goe gof gog goi gok gon goo gop gor gos gpa gpb gpe gpf gpg gpi gpk gpn gpo gpp gpr gps gra grb gre grf grg gri grk grn gro grp grr grs gsa gsb gse gsf gsg gsi gsk gsn gso gsp gsr gss i-f ia- iaa iab iae iaf iag iai ian iao iap iar ias iba ibb ibe ibf ibg ibi ibk ibn ibo ibp ibr ibs ie- iea iee ief ieg iei iek ien iep ier ies ifa ifb ife iff ifg ifi ifn ifo ifp ifr ifs iga igb ige igf igg igi igk ign igo igp igr igs iia iib iie iif iii iin iio iip iir iis ika ikb ike ikf iki ikk iko ikr iks in- ina inb ine inf ing ini ink inn ino inp inr ins io- ioa iob ioe iof iog ioi ion ioo iop ior ios ipa ipb ipe ipf ipg ipi ipn ipo ipp ipr ips ir- ira irb ire irf irg iri irk irn iro irp irr irs is- isa isb ise isf isg isi isk isn iso isp isr iss ka- kaa kab kae kaf kag kai kak kan kao kap kar kas kba kbb kbe kbf kbi kbk kbn kbo kbp kbr kbs ke- kea keb kee kef keg kei kek ken keo kep ker kes kfa kff kfg kfi kfo kfs kga kgb kgf kgi kgo kgp kgs kia kib kie kif kig kii kik kin kio kip kir kis kkb kke kki kkk kkn kkp kkr kks kn- kna kne knf kng kni knk knn kno knp knr koa kob koe kof kog koi kok kon koo kop kor kos kpa kpe kpf kpi kpk kpn kpo kpp kpr kps kra krf krg kri krk krn kro krp krr krs ksa ksb kse ksf ksg ksi ksk ksn kso ksp ksr kss n-i naa nab nae naf nag nai nak nan nao nap nar nas nba nbb nbe nbf nbg nbi nbk nbn nbo nbp nbr nbs ne- nea neb nee