-er ddd dde ddf ddi ddn ddo ddp ddr ddt de- ded dee def dei den deo dep der det dfd dfe dff dfi dfn dfo dfp dfr dft di- did die dif dii din dio dip dir dit dnd dne dnf dni dnn dno dnp dnr dnt dod doe dof doi don doo dop dor dot dpd dpe dpf dpi dpn dpo dpp dpr dpt drd dre dri drn dro drp drr drt dtd dte dtf dti dtn dto dtp dtr dtt ed- edd ede edf edi edn edo edp edr edt eed eee eef een eeo eep eer eet ef- efd efe eff efi efo efp efr eft eid eie eif eii ein eio eip eir eit en- end ene enf eni enn eno enp enr ent eo- eod eoe eof eoi eon eoo eop eor eot ep- epd epe epf epi epn epo epp epr ept erd ere erf eri ern ero erp err ert etd ete etf eti etn eto etp etr ett fdd fde fdf fdi fdn fdo fdp fdr fdt fed fee fef fei fen feo fep fer fet ffd ffe fff ffi ffn ffo ffp ffr fft fid fie fif fii fin fip fir fit fnd fne fnf fni fnn fnp fnr fnt foe fof foi fon foo fop for fot fpd fpe fpi fpn fpo fpp fpr fpt frd fre frf fri frn fro frp frr frt ftd fte ftf fti ftn fto ftp ftr ftt i-d i-f idd ide idf idi idn ido idp idr idt ie- ied iee ief iei ien iep ier iet ifd ife iff ifi ifn ifo ifp ifr ift iid iie iif iii iin iio iip iir iit in- ind ine inf ini inn ino inp inr int io- iod ioe iof ioi ion ioo iop ior iot ipd ipe ipf ipi ipn ipo ipp ipr ipt ir- ird ire irf iri irn iro irp irr irt itd ite itf iti itn ito itp itt n-i ndd nde ndf ndi ndn ndo ndp ndr ndt ne- ned nee nef nei nen neo nep ner net nfd nfe nff nfi nfn nfo nfp nfr nft nid nie nif nii nin nio nip nir nit nne nnf nni nnn nno nnp nnt no- nod noe nof noi non noo nop nor not npd npe npf npi npn npo npp npr npt nrd nre nrf nri nrn nro nrp nrr nrt ntd nte ntf nti ntn nto ntp ntr ntt o-i odd ode odf odi odn odo odp odr odt oed oee oef oei oen oeo oep oer oet of- ofd ofe off ofi ofn ofo ofp ofr oft oid oie oif oii oin oio oip oir oit on- ond one onf oni onn ono onp onr ont oo- ood oof ooi oon ooo oop oor oot op- opd ope opf opi opn opo opp opr opt or- ord ore orf ori orn oro orp orr ort ot- otd ote otf oti otn oto otp otr ott p-p pdd pde pdf pdi pdn pdo pdp pdr pdt ped pee pef pei pen peo pep per pet pfd pfe pff pfi pfn pfo pfp pfr pft pid pie pif pii pin pio pip pir pit pn- pnd pne pnf pni pnn pno pnp pnr pnt pod poe pof poi pon poo pop por pot ppd ppe ppf ppi ppn ppo ppp ppr ppt prd pre prf pri prn pro prp prr prt pt- ptd pte ptf pti ptn pto ptp ptr ptt rdd rde rdf rdi rdn rdo rdp rdr rdt re- red ree ref rei ren reo rep rer ret rfd rfe rff rfi rfn rfo rfp rfr rft rid rie rif rii rin rio rip rir rit rnd rni rnn rno rnp rnr rnt rod roe rof roi ron roo rop ror rot rpd rpe rpf rpi rpn rpo rpp rpr rpt rrd rrf rri rrn rrp rrr rrt rtd rte rtf rti rtn rto rtp rtr rtt tdd tde tdf tdi tdn tdo tdp tdr tdt te- ted tee tef tei ten teo tep ter tet tfd tfe tff tfi tfn tfo tfp tfr tft tid tie tif tii tin tio tip tir tit tnd tne tnf tni tnn tno tnp tnr tnt to- tod toe tof toi ton too top tor tot tpd tpe tpf tpi tpn tpo tpp tpr tpt trd tre trf tri trn tro trp trr trt ttd tte ttf tti ttn tto ttp ttr ttt