-er a-a a-b a-i a-t aaa aab aae aag aai aan aao aar aas aat aaw ab- aba abb abe abg abi abn abo abr abs abt abw aea aeb aee aeg aei aen aeo aer aes aet aew ag- aga agb age agg agi agn ago agr ags agt agw ai- aia aib aie aig aii ain aio air ais ait aiw an- ana anb ane ang ani ann ano anr ans ant aoa aob aoe aog aoi aon aoo aor aos aot aow ar- ara arb are arg ari arn aro arr ars art arw as- asa asb ase asg asi asn aso asr ass ast asw at- ata atb ate atg ati atn ato atr ats att atw aw- awa awb awe awg awi awn awo awr aws awt aww baa bab bae bag bai ban bao bar bas bat baw bba bbb bbe bbg bbi bbn bbo bbr bbs bbt bbw be- bea beb bee beg bei ben beo ber bes bet bew bga bgb bge bgg bgi bgn bgo bgr bgs bgt bgw bi- bia bib bie big bii bin bio bir bis bit biw bna bnb bne bng bni bnn bno bnr bns bnt bnw boa bob boe bog boi bon boo bor bos bot bow bra brb bre brg bri brn bro brr brs brt brw bsa bsb bse bsg bsi bsn bso bsr bss bst bsw bta btb bte btg bti btn bto btr bts btt btw bwa bwb bwg bwi bwo bwr bws eaa eab eae eag eai ean eao ear eas eat eaw eba ebb ebe ebg ebi ebn ebo ebr ebs ebt ebw eea eeb eee eeg een eeo eer ees eet eew ega egb ege egg egi egn ego egr egs egt egw eia eib eie eig eii ein eio eir eis eit en- ena enb ene eng eni enn eno enr ens ent enw eo- eoa eob eoe eog eoi eon eoo eor eos eot eow era erb ere erg eri ern ero err ers ert erw es- esa esb ese esg esi esn eso esr ess est esw eta etb ete etg eti etn eto etr ets ett etw ewa ewb ewe ewi ewo ewr ews ewt eww gaa gab gae gag gai gan gao gar gas gat gaw gba gbe gbg gbi gbn gbo gbr gbs gbt gbw ge- gea geb gee geg gei gen geo ger ges get gew gga ggb ggg ggi ggn ggo ggr ggs ggt ggw gia gib gie gig gii gin gio gir gis git gna gnb gne gni gnn gno gnr gns gnt gnw goa gob goe gog goi gon goo gor gos got gow gra grb gre grg gri grn gro grr grs grt grw gsa gsb gse gsg gsi gsn gso gsr gss gst gsw gta gtb gte gtg gti gtn gto gtr gts gtt gtw gwa gwb gwe gwg gwi gwn gwr gws gwt ia- iaa iab iae iag iai ian iao iar ias iat iaw iba ibb ibe ibg ibi ibn ibo ibr ibs ibt ibw ie- iea iee ieg iei ien ier ies iet iga igb ige igg igi ign igo igr igs igt igw iia iib iie iii iin iio iir iis iit iiw in- ina inb ine ing ini inn ino inr ins int io- ioa iob ioe iog ioi ion ioo ior ios iot iow ir- ira irb ire irg iri irn iro irr irs irt is- isa isb ise isg isi isn iso isr iss ist isw ita itb ite itg iti itn ito its itt iwa iwb iwe iwg iwi iwo iwr iws iwt iww n-i naa nab nae nag nai nan nao nar nas nat naw nba nbb nbe nbg nbi nbn nbo nbr nbs nbt nbw ne- nea neb nee neg nei nen neo ner nes net new nga ngb nge ngg ngi ngn ngo ngs ngt ngw nia nib nie nig nii nin nio nir nis nit nna nnb nne nng nni nnn nno nns nnt nnw no- noa nob noe nog noi non noo nor nos not now nra nrb nre nrg nri nrn nro nrr nrs nrt nrw nsa nsb nse nsg nsi nsn nso nsr nss nst nsw nta ntb nte ntg nti ntn nto ntr nts ntt nwa nwb nwe nwi nwn nwo nwr nws nwt o-i oaa oab oae oag oai oan oao oar oas oat oaw ob- oba obb obe obg obi obn obo obr obs obt obw oea oeb oee oeg oei oen oeo oer oes oet oga oge ogg ogi ogn ogo ogs ogt oia oib oie oii oin oio oir ois oit on- ona onb one ong oni onn ono onr ons ont oo- ooa oob oog ooi oon ooo oor oos oot oow or- ora orb ore org ori orn oro orr ors ort os- osa osb ose osg osi osn oso osr oss ost osw ot- ota otb ote otg oti otn oto otr ots ott otw owa owb owe owi own owo ows owt oww ra- raa rab rae rag rai ran rao rar ras rat raw rba rbb rbe rbg rbi rbn rbo rbr rbs rbt rbw re- rea reb ree reg rei ren reo rer res ret rew rga rgb rge rgg rgi rgn rgo rgr rgs rgt rgw ria rib rie rig rii rin rio rir ris rit rna rnb rng rni rnn rno rnr rns rnt rnw roa rob roe rog roi ron roo ror ros rot row rra rrb rrg rri rrn rrr rrs rrt rsa rsb rse rsg rsi rsn rso rsr rss rst rsw rta rtb rte rtg rti rtn rto rtr rts rtt rtw rwa rwb rwe rwi rwr rws saa sab sae sag sai san sao sar sas sat saw sba sbb sbe sbg sbi sbn sbo sbr sbs sbt sbw se- sea seb see seg sei sen seo ser ses set sew sga sgb sge sgg sgi sgn sgo sgr sgs sgt sia sib