-er -th ddd dde ddh ddi ddo ddp ddr ddt ddx de- ded dee deh dei deo dep der det dex dh- dhd dhe dhh dhi dho dhp dhr dht di- did die dih dii dio dip dir dit dix dod doe doh doi doo dop dor dot dox dpd dpe dph dpi dpo dpp dpr dpt drd dre dri dro drp drr drt drx dtd dte dth dti dto dtp dtr dtt dtx dxd dxi dxo dxp dxr dxt dxx ed- edd ede edh edi edo edp edr edt edx eed eee eeo eep eer eet eex ehd ehe ehh ehi eho ehp ehr eht eid eie eii eio eip eir eit eix eo- eod eoe eoh eoi eoo eop eor eot ep- epd epe eph epi epo epp epr ept epx erd ere erh eri ero erp err ert etd ete eth eti eto etp etr ett etx ex- exd exe exh exi exo exp exr ext exx h-i hdd hde hdh hdi hdo hdp hdr hdt hdx he- hed hee heh hei heo hep her het hex hhd hhe hhh hhi hho hhp hhr hht hid hie hih hii hio hip hir hit hix hod hoe hoh hoi hoo hop hor hot hox hpd hpe hph hpi hpo hpp hpr hpt hr- hrd hre hrh hri hro hrp hrr hrt htd hte hth hti hto htp htr htt htx hxd i-d idd ide idh idi ido idp idr idt idx ie- ied iee iei iep ier iet iex ihd ihe ihh ihi iho ihp ihr iht iid iie iih iii iio iip iir iit iix io- iod ioe ioh ioi ioo iop ior iot ipd ipe ipi ipo ipp ipr ipt ipx ir- ird ire iri iro irp irr irt irx itd ite ith iti ito itp itt itx ixe ixi o-i odd ode odh odi odo odp odr odt oed oee oeh oei oeo oep oer oet oex ohd ohe ohh ohi oho ohp ohr oht oid oie oii oio oip oir oit oo- ood ooh ooi ooo oop oor oot oox op- opd ope oph opi opo opp opr opt opx or- ord ore orh ori oro orp orr ort orx ot- otd ote oth oti oto otp otr ott ox- oxi oxo oxt oxx p-p pdd pde pdh pdi pdo pdp pdr pdt pdx ped pee peh pei peo pep per pet pex phd phe phi pho php phr pht phx pid pie pih pii pio pip pir pit pix pod poe poh poi poo pop por pot pox ppd ppe pph ppi ppo ppp ppr ppt ppx prd pre prh pri pro prp prr prt prx pt- ptd pte pth pti pto ptp ptr ptt ptx pxe pxr pxt rdd rde rdh rdi rdo rdp rdr rdt rdx re- red ree reh rei reo rep rer ret rex rh- rhd rhe rhh rhi rho rhp rhr rht rid rie rih rii rio rip rir rit rix rod roe roh roi roo rop ror rot rox rpd rpe rph rpi rpo rpp rpr rpt rpx rrd rrh rri rrp rrr rrt rtd rte rti rto rtp rtr rtt rtx rxp rxr t-x tdd tde tdh tdi tdo tdp tdr tdt tdx te- ted tee teh tei teo tep ter tet tex th- thd the thh thi tho thp thr tht thx tid tie tih tii tio tip tir tit tix to- tod toe toh toi too top tor tot tox tpd tpe tph tpi tpo tpp tpr tpt tpx trd tre trh tri tro trp trr trt trx ttd tte tth tti tto ttp ttr ttt ttx txe txi txt xde xdh xdi xdr xdt xed xee xep xer xet xex xhd xhp xht xie xii xio xit xix xod xoi xoo xop xor xot xox xpd xpe xpo xpp xpt xrd xrt xrx xti xtp xtr xtx xxi xxo xxp xxx