-er a-a a-b a-i aaa aab aad aae aaf aag aai aao aar ab- aba abb abd abe abf abg abi abo abr ad- ada adb add ade adf adg adi ado adr aea aeb aed aee aef aeg aei aeo aer af- afa afb afd afe aff afg afi afo afr ag- aga agb agd age agf agg agi ago agr ai- aia aib aid aie aif aig aii aio air aoa aob aod aoe aof aog aoi aoo aor ar- ara arb ard are arf arg ari aro arr baa bab bad bae baf bag bai bao bar bba bbb bbd bbe bbf bbg bbi bbo bbr bda bdb bdd bde bdf bdg bdi bdo bdr be- bea beb bed bee bef beg bei beo ber bfa bfb bfd bfe bff bfg bfi bfo bfr bga bgb bgd bge bgf bgg bgi bgo bgr bi- bia bib bid bie bif big bii bio bir boa bob bod boe bof bog boi boo bor bra brb brd bre brf brg bri bro brr daa dab dad dae daf dag dai dao dar dba dbb dbd dbe dbf dbg dbi dbo dbr dda ddb ddd dde ddf ddg ddi ddo ddr de- dea deb ded dee def deg dei deo der dfa dfb dfd dfe dff dfg dfi dfo dfr dga dgd dge dgf dgg dgi dgr di- dia dib did die dif dig dii dio dir doa dob dod doe dof dog doi doo dor dra drb drd dre drg dri dro drr eaa eab ead eae eaf eag eai eao ear eba ebb ebd ebe ebf ebg ebi ebo ebr ed- eda edb edd ede edf edg edi edo edr eea eeb eed eee eef eeg eeo eer ef- efa efb efd efe eff efg efi efo efr ega egb egd ege egf egg egi ego egr eia eib eid eie eif eig eii eio eir eo- eoa eob eod eoe eof eog eoi eoo eor era erb erd ere erf erg eri ero err faa fab fad fae faf fag fai fao far fba fbb fbd fbe fbf fbg fbi fbo fbr fda fdb fdd fde fdf fdg fdi fdo fdr fea feb fed fee fef feg fei feo fer ffa ffd ffe fff ffg ffi ffo ffr fga fgb fgd fge fgf fgg fgi fgr fia fib fid fie fif fig fii fir foa fob foe fof fog foi foo for fra frb frd fre frf frg fri fro frr g-d gaa gab gad gae gaf gag gai gao gar gba gbd gbe gbf gbg gbi gbo gbr gda gdb gdd gde gdf gdi gdo gdr ge- gea geb ged gee gef geg gei geo ger gfa gfb gfd gfe gff gfi gfo gfr gga ggb ggd ggg ggi ggo ggr gia gib gid gie gif gig gii gio gir goa gob god goe gof gog goi goo gor gra grb grd gre grf grg gri gro grr i-d i-f ia- iaa iab iad iae iaf iag iai iao iar iba ibb ibd ibe ibf ibg ibi ibo ibr ida idb idd ide idf idg idi ido idr ie- iea ied iee ief ieg iei ier ifa ifb ifd ife iff ifg ifi ifo ifr iga igb igd ige igf igg igi igo igr iia iib iid iie iif iii iio iir io- ioa iob iod ioe iof iog ioi ioo ior ir- ira irb ird ire irf irg iri iro irr o-i oaa oab oad oae oaf oag oai oao oar ob- oba obb obd obe obf obg obi obo obr oda odb odd ode odf odg odi odo odr oea oeb oed oee oef oeg oei oeo oer of- ofa ofb ofd ofe off ofg ofi ofo ofr oga ogd oge ogf ogg ogi ogo oia oib oid oie oif oii oio oir oo- ooa oob ood oof oog ooi ooo oor or- ora orb ord ore orf org ori oro orr ra- raa rab rad rae raf rag rai rao rar rba rbb rbd rbe rbf rbg rbi rbo rbr rda rdb rdd rde rdf rdg rdi rdo rdr re- rea reb red ree ref reg rei reo rer rfa rfb rfd rfe rff rfg rfi rfo rfr rga rgb rgd rge rgf rgg rgi rgo rgr ria rib rid rie rif rig rii rio rir roa rob rod roe rof rog roi roo ror rra rrb rrd rrf rrg rri rrr

a-be a-do a-ii aaaa aaab aaad aaae aaaf aaai aaar aaba aabb aabd aabi aada aade aadi aaea aafa aafb aafd aaff aafi aage aaib aaii aaoe aaoo aara aard aare aari aaro abaa abab abad abae abaf abag abai abar abb- abba abbb abbe abbi abbo abbr abda abdi abdo abed abee aber abff abgd abia abib abid abie abig abir aboa abob abod abof aboo abor abra abri abro adaa adab adad adae adag adai adao adar adba adbi adda addd adde addi addo addr adea adeb adee adeo ader adfa adia adib adie adif adig adio adir adob adod adoe adog adoo ador adra adre adro aeaf aebi aede aeer aega aeio aer- aera aerd aeri aero afaa afad afao afar afdb afee afer affa affi affo afgf afia afib afid afif afig afir afoa afoe afog afoo afor afr- afra afre afri afro ag-o agad agag agai agao agar agba agbo agda agde agea aged agee agei ager agfa agga agge aggi agia agib agid agie agig agii agio agir agob agod agog agoo agra agre agri agro aiai aiba aibo aida aidb aide aidi aidr aiea aiee aifd aiff aiga aigo aiia aiib aiid aiir aioi aira aird aire airi airo aoba aora aorb arab arad arae araf arag arai arar arba arbe arbi arda arde ardf ardi ardo area ared aree aref areg arei areo arfa arfb arff arga argb arge argi argo aria arib arid arie arif arig arii ario aroa arob arod aroe aroi aroo aror arr- arra arre arrg arri arro arrr