-er ddd dde ddi ddn ddo ddp ddr ddt de- ded dee dei den deo dep der det di- did die dii din dio dip dir dit dnd dne dni dnn dno dnp dnr dnt dod doe doi don doo dop dor dot dpd dpe dpi dpn dpo dpp dpr dpt drd dre dri drn dro drp drr drt dtd dte dti dtn dto dtp dtr dtt ed- edd ede edi edn edo edp edr edt eed eee een eeo eep eer eet eid eie eii ein eio eip eir eit en- end ene eni enn eno enp enr ent eo- eod eoe eoi eon eoo eop eor eot ep- epd epe epi epn epo epp epr ept erd ere eri ern ero erp err ert etd ete eti etn eto etp etr ett i-d idd ide idi idn ido idp idr idt ie- ied iee iei ien iep ier iet iid iie iii iin iio iip iir iit in- ind ine ini inn ino inp inr int io- iod ioe ioi ion ioo iop ior iot ipd ipe ipi ipn ipo ipp ipr ipt ir- ird ire iri irn iro irp irr irt itd ite iti itn ito itp itt n-i ndd nde ndi ndn ndo ndp ndr ndt ne- ned nee nei nen neo nep ner net nid nie nii nin nio nip nir nit nne nni nnn nno nnp nnt no- nod noe noi non noo nop nor not npd npe npi npn npo npp npr npt nrd nre nri nrn nro nrp nrr nrt ntd nte nti ntn nto ntp ntr ntt o-i odd ode odi odn odo odp odr odt oed oee oei oen oeo oep oer oet oid oie oii oin oio oip oir oit on- ond one oni onn ono onp onr ont oo- ood ooi oon ooo oop oor oot op- opd ope opi opn opo opp opr opt or- ord ore ori orn oro orp orr ort ot- otd ote oti otn oto otp otr ott p-p pdd pde pdi pdn pdo pdp pdr pdt ped pee pei pen peo pep per pet pid pie pii pin pio pip pir pit pn- pnd pne pni pnn pno pnp pnr pnt pod poe poi pon poo pop por pot ppd ppe ppi ppn ppo ppp ppr ppt prd pre pri prn pro prp prr prt pt- ptd pte pti ptn pto ptp ptr ptt rdd rde rdi rdn rdo rdp rdr rdt re- red ree rei ren reo rep rer ret rid rie rii rin rio rip rir rit rnd rni rnn rno rnp rnr rnt rod roe roi ron roo rop ror rot rpd rpe rpi rpn rpo rpp rpr rpt rrd rri rrn rrp rrr rrt rtd rte rti rtn rto rtp rtr rtt tdd tde tdi tdn tdo tdp tdr tdt te- ted tee tei ten teo tep ter tet tid tie tii tin tio tip tir tit tnd tne tni tnn tno tnp tnr tnt to- tod toe toi ton too top tor tot tpd tpe tpi tpn tpo tpp tpr tpt trd tre tri trn tro trp trr trt ttd tte tti ttn tto ttp ttr ttt