-er a-a a-b a-i a-t aaa aab aad aae aag aai aao aar aat aau aax ab- aba abb abd abe abg abi abo abr abt abu abx ad- ada adb add ade adg adi ado adr adt adu adx aea aeb aed aee aeg aei aeo aer aet aeu aex ag- aga agb agd age agg agi ago agr agt agu agx ai- aia aib aid aie aig aii aio air ait aiu aix aoa aob aod aoe aog aoi aoo aor aot aou aox ar- ara arb ard are arg ari aro arr art aru arx at- ata atb atd ate atg ati ato atr att atu atx au- aua aub aud aue aug aui auo aur aut aux ax- axa axe axi axo axr axt axx b-u baa bab bad bae bag bai bao bar bat bau bax bba bbb bbd bbe bbg bbi bbo bbr bbt bbu bbx bda bdb bdd bde bdg bdi bdo bdr bdt bdu bdx be- bea beb bed bee beg bei beo ber bet beu bex bga bgb bgd bge bgg bgi bgo bgr bgt bgu bgx bi- bia bib bid bie big bii bio bir bit biu bix boa bob bod boe bog boi boo bor bot bou box bra brb brd bre brg bri bro brr brt bru brx bta btb btd bte btg bti bto btr btt btu btx bua bub bud bue bug bui buo bur but buu bux bxb bxd bxi bxo bxx daa dab dad dae dag dai dao dar dat dau dax dba dbb dbd dbe dbg dbi dbo dbr dbt dbu dbx dda ddb ddd dde ddg ddi ddo ddr ddt ddu ddx de- dea deb ded dee deg dei deo der det deu dex dga dgd dge dgg dgi dgr dgt dgu di- dia dib did die dig dii dio dir dit diu dix doa dob dod doe dog doi doo dor dot dou dox dra drb drd dre drg dri dro drr drt dru drx dta dtb dtd dte dtg dti dto dtr dtt dtu dtx dua dub dud due dug dui duo dur dut dux dxd dxi dxo dxr dxt dxx eaa eab ead eae eag eai eao ear eat eau eax eba ebb ebd ebe ebg ebi ebo ebr ebt ebu ebx ed- eda edb edd ede edg edi edo edr edt edu edx eea eeb eed eee eeg eeo eer eet eex ega egb egd ege egg egi ego egr egt egu egx eia eib eid eie eig eii eio eir eit eiu eix eo- eoa eob eod eoe eog eoi eoo eor eot eou era erb erd ere erg eri ero err ert eru eta etb etd ete etg eti eto etr ett etu etx eu- eua eub eud eue eug eui eur eut eux ex- exa exd exe exi exo exr ext exu exx g-d gaa gab gad gae gag gai gao gar gat gau gba gbd gbe gbg gbi gbo gbr gbt gbu gbx gda gdb gdd gde gdi gdo gdr gdt gdu gdx ge- gea geb ged gee geg gei geo ger get geu gex gga ggb ggd ggg ggi ggo ggr ggt ggu gia gib gid gie gig gii gio gir git giu goa gob god goe gog goi goo gor got gou gox gra grb grd gre grg gri gro grr grt gru grx gta gtb gtd gte gtg gti gto gtr gtt gtu gtx gu- gua gub gud gue gug gui guo gur gut guu gxa gxt i-d ia- iaa iab iad iae iag iai iao iar iat iau iba ibb ibd ibe ibg ibi ibo ibr ibt ibu ibx ida idb idd ide idg idi ido idr idt idu idx ie- iea ied iee ieg iei ier iet iex iga igb igd ige igg igi igo igr igt igu iia iib iid iie iii iio iir iit iiu iix io- ioa iob iod ioe iog ioi ioo ior iot iou ir- ira irb ird ire irg iri iro irr irt iru irx ita itb itd ite itg iti ito itt itu itx iu- iua iub iud iue iug iui iur iut ixe ixi o-i oaa oab oad oae oag oai oao oar oat oau oax ob- oba obb obd obe obg obi obo obr obt obu obx oda odb odd ode odg odi odo odr odt odu oea oeb oed oee oeg oei oeo oer oet oex oga ogd oge ogg ogi ogo ogt ogx oia oib oid oie oii oio oir oit oiu oo- ooa oob ood oog ooi ooo oor oot oox or- ora orb ord ore org ori oro orr ort oru orx ot- ota otb otd ote otg oti oto otr ott otu ou- oua oud oue oui ouo our out ox- oxa oxb oxi oxo oxt oxx ra- raa rab rad rae rag rai rao rar rat rau rax rba rbb rbd rbe rbg rbi rbo rbr rbt rbu rbx rda rdb rdd rde rdg rdi rdo rdr rdt rdu rdx re- rea reb red ree reg rei reo rer ret reu rex rga rgb rgd rge rgg rgi rgo rgr rgt rgx ria rib rid rie rig rii rio rir rit rix roa rob rod roe rog roi roo ror rot rou rox rra rrb rrd rrg rri rrr rrt rru rta rtb rtd rte rtg rti rto rtr rtt rtu rtx rua rub rud rue rug rui ruo rur rut ruu rux rxr t-x taa tab tad tae tag tai tao tar tat tau tax tba tbb tbd tbe tbg tbi tbo tbr tbt tbu tda tdb tdd tde tdg tdi tdo tdr tdt tdu tdx te- tea teb ted tee teg tei teo ter tet teu tex tga tgb tge tgg tgi tgo tgr tgt tgu tia tib tid tie tig tii tio tir tit tiu tix to- toa tob tod toe tog toi too tor tot tou tox tra trb trd tre trg tri tro trr trt tru trx tta ttb