-er -th ddd dde ddf ddh ddo ddp ddr ddt ddx de- ded dee def deh deo dep der det dex dfd dfe dff dfh dfo dfp dfr dft dfx dh- dhd dhe dhf dhh dho dhp dhr dht dod doe dof doh doo dop dor dot dox dpd dpe dpf dph dpo dpp dpr dpt drd dre dro drp drr drt drx dtd dte dtf dth dto dtp dtr dtt dtx dxd dxo dxp dxr dxt dxx ed- edd ede edf edh edo edp edr edt edx eed eee eef eeo eep eer eet eex ef- efd efe eff efh efo efp efr eft efx ehd ehe ehf ehh eho ehp ehr eht eo- eod eoe eof eoh eoo eop eor eot ep- epd epe epf eph epo epp epr ept epx erd ere erf erh ero erp err ert etd ete etf eth eto etp etr ett etx ex- exd exe exh exo exp exr ext exx fdd fde fdf fdh fdo fdp fdr fdt fdx fed fee fef feh feo fep fer fet fex ffd ffe fff ffh ffo ffp ffr fft ffx fhe fhf fhh fho fhp fhr foe fof foh foo fop for fot fox fpd fpe fph fpo fpp fpr fpt fpx frd fre frf frh fro frp frr frt ftd fte ftf fth fto ftp ftr ftt ftx fxe fxp fxr fxt fxx hdd hde hdf hdh hdo hdp hdr hdt hdx he- hed hee hef heh heo hep her het hex hfd hfe hff hfh hfo hfp hfr hft hhd hhe hhf hhh hho hhp hhr hht hod hoe hof hoh hoo hop hor hot hox hpd hpe hpf hph hpo hpp hpr hpt hr- hrd hre hrf hrh hro hrp hrr hrt htd hte htf hth hto htp htr htt htx hxd odd ode odf odh odo odp odr odt oed oee oef oeh oeo oep oer oet oex of- ofd ofe off ofo ofp ofr oft ofx ohd ohe ohf ohh oho ohp ohr oht oo- ood oof ooh ooo oop oor oot oox op- opd ope opf oph opo opp opr opt opx or- ord ore orf orh oro orp orr ort orx ot- otd ote otf oth oto otp otr ott ox- oxf oxo oxt oxx p-p pdd pde pdf pdh pdo pdp pdr pdt pdx ped pee pef peh peo pep per pet pex pfd pfe pff pfo pfp pfr pft pfx phd phe phf pho php phr pht phx pod poe pof poh poo pop por pot pox ppd ppe ppf pph ppo ppp ppr ppt ppx prd pre prf prh pro prp prr prt prx pt- ptd pte ptf pth pto ptp ptr ptt ptx pxe pxr pxt rdd rde rdf rdh rdo rdp rdr rdt rdx re- red ree ref reh reo rep rer ret rex rfd rfe rff rfh rfo rfp rfr rft rh- rhd rhe rhf rhh rho rhp rhr rht rod roe rof roh roo rop ror rot rox rpd rpe rpf rph rpo rpp rpr rpt rpx rrd rrf rrh rrp rrr rrt rtd rte rtf rto rtp rtr rtt rtx rxp rxr t-x tdd tde tdf tdh tdo tdp tdr tdt tdx te- ted tee tef teh teo tep ter tet tex tfd tfe tff tfh tfo tfp tfr tft tfx th- thd the thf thh tho thp thr tht thx to- tod toe tof toh too top tor tot tox tpd tpe tpf tph tpo tpp tpr tpt tpx trd tre trf trh tro trp trr trt trx ttd tte ttf tth tto ttp ttr ttt ttx txe txf txt xde xdf xdh xdr xdt xed xee xep xer xet xex xfe xfh xft xfx xhd xhp xht xod xof xoo xop xor xot xox xpd xpe xpf xpo xpp xpt xrd xrf xrt xrx xtf xtp xtr xtx xxo xxp xxx