-er ddd dde ddg ddn ddo ddr ddt de- ded dee deg den deo der det dgd dge dgg dgn dgr dgt dnd dne dng dnn dno dnr dnt dod doe dog don doo dor dot drd dre drg drn dro drr drt dtd dte dtg dtn dto dtr dtt ed- edd ede edg edn edo edr edt eed eee eeg een eeo eer eet egd ege egg egn ego egr egt en- end ene eng enn eno enr ent eo- eod eoe eog eon eoo eor eot erd ere erg ern ero err ert etd ete etg etn eto etr ett g-d gdd gde gdn gdo gdr gdt ge- ged gee geg gen geo ger get ggd ggg ggn ggo ggr ggt gnd gne gnn gno gnr gnt god goe gog gon goo gor got grd gre grg grn gro grr grt gtd gte gtg gtn gto gtr gtt ndd nde ndg ndn ndo ndr ndt ne- ned nee neg nen neo ner net ngd nge ngg ngn ngo ngt nne nng nnn nno nnt no- nod noe nog non noo nor not nrd nre nrg nrn nro nrr nrt ntd nte ntg ntn nto ntr ntt odd ode odg odn odo odr odt oed oee oeg oen oeo oer oet ogd oge ogg ogn ogo ogt on- ond one ong onn ono onr ont oo- ood oog oon ooo oor oot or- ord ore org orn oro orr ort ot- otd ote otg otn oto otr ott rdd rde rdg rdn rdo rdr rdt re- red ree reg ren reo rer ret rgd rge rgg rgn rgo rgr rgt rnd rng rnn rno rnr rnt rod roe rog ron roo ror rot rrd rrg rrn rrr rrt rtd rte rtg rtn rto rtr rtt tdd tde tdg tdn tdo tdr tdt te- ted tee teg ten teo ter tet tge tgg tgn tgo tgr tgt tnd tne tng tnn tno tnr tnt to- tod toe tog ton too tor tot trd tre trg trn tro trr trt ttd tte ttg ttn tto ttr ttt