-er ddd dde ddf ddk ddn ddo ddr ddt de- ded dee def dek den deo der det dfd dfe dff dfk dfn dfo dfr dft dke dkk dko dkr dkt dnd dne dnf dnk dnn dno dnr dnt dod doe dof dok don doo dor dot drd dre drk drn dro drr drt dtd dte dtf dtk dtn dto dtr dtt ed- edd ede edf edk edn edo edr edt eed eee eef eek een eeo eer eet ef- efd efe eff efo efr eft ekd eke ekf eko ekr ekt en- end ene enf enk enn eno enr ent eo- eod eoe eof eok eon eoo eor eot erd ere erf erk ern ero err ert etd ete etf etk etn eto etr ett fdd fde fdf fdk fdn fdo fdr fdt fed fee fef fek fen feo fer fet ffd ffe fff ffk ffn ffo ffr fft fkf fkk fkt fnd fne fnf fnk fnn fnr fnt foe fof fok fon foo for fot frd fre frf frk frn fro frr frt ftd fte ftf ftk ftn fto ftr ftt k-t kde kdf kdk kdo kdr kdt ke- ked kee kef kek ken keo ker ket kfd kff kfo kke kkk kkn kkr kkt kn- knd kne knf knk knn kno knr knt kod koe kof kok kon koo kor kot krd krf krk krn kro krr krt kte ktf ktk ktn kto ktr ktt ndd nde ndf ndk ndn ndo ndr ndt ne- ned nee nef nek nen neo ner net nfd nfe nff nfk nfn nfo nfr nft nke nkf nkk nkn nko nkr nkt nne nnf nnk nnn nno nnt no- nod noe nof nok non noo nor not nrd nre nrf nrk nrn nro nrr nrt ntd nte ntf ntk ntn nto ntr ntt odd ode odf odn odo odr odt oed oee oef oen oeo oer oet of- ofd ofe off ofn ofo ofr oft okd oke okk oko okr on- ond one onf onk onn ono onr ont oo- ood oof ook oon ooo oor oot or- ord ore orf ork orn oro orr ort ot- otd ote otf otk otn oto otr ott rdd rde rdf rdn rdo rdr rdt re- red ree ref rek ren reo rer ret rfd rfe rff rfk rfn rfo rfr rft rke rkf rkk rko rkt rnd rnn rno rnr rnt rod roe rof rok ron roo ror rot rrd rrf rrk rrn rrr rrt rtd rte rtf rtk rtn rto rtr rtt tdd tde tdf tdk tdn tdo tdr tdt te- ted tee tef tek ten teo ter tet tfd tfe tff tfk tfn tfo tfr tft tke tkk tko tkr tkt tnd tne tnf tnk tnn tno tnr tnt to- tod toe tof tok ton too tor tot trd tre trf trk trn tro trr trt ttd tte ttf ttk ttn tto ttr ttt