-er ddd dde ddi ddn ddo ddp ddr de- ded dee dei den deo dep der dev di- did die dii din dio dip dir div dnd dne dni dnn dno dnp dnr dod doe doi don doo dop dor dov dpd dpe dpi dpn dpo dpp dpr dpv drd dre dri drn dro drp drr drv dvd dve dvi dvn dvp dvr ed- edd ede edi edn edo edp edr eed eee een eeo eep eer eev eid eie eii ein eio eip eir eiv en- end ene eni enn eno enp enr env eo- eod eoe eoi eon eoo eop eor ep- epd epe epi epn epo epp epr erd ere eri ern ero erp err erv evd eve evi evn evo evp evr evv i-d i-v idd ide idi idn ido idp idr idv ie- ied iee iei ien iep ier iev iid iie iii iin iio iip iir in- ind ine ini inn ino inp inr inv io- iod ioe ioi ion ioo iop ior iov ipd ipe ipi ipn ipo ipp ipr ipv ir- ird ire iri irn iro irp irr irv ivd ive ivi ivo ivp ivr ivv n-i ndd nde ndi ndn ndo ndp ndr ndv ne- ned nee nei nen neo nep ner nev nid nie nii nin nio nip nir niv nne nni nnn nno nnp nnv no- nod noe noi non noo nop nor nov npd npe npi npn npo npp npr npv nrd nre nri nrn nro nrp nrr nrv nvd nve nvi nvn nvp nvv o-i odd ode odi odn odo odp odr odv oed oee oei oen oeo oep oer oid oie oii oin oio oip oir oiv on- ond one oni onn ono onp onr oo- ood ooi oon ooo oop oor oov op- opd ope opi opn opo opp opr opv or- ord ore ori orn oro orp orr orv ov- ovd ove ovi ovo ovp ovv p-p pdd pde pdi pdn pdo pdp pdr pdv ped pee pei pen peo pep per pev pid pie pii pin pio pip pir piv pn- pnd pne pni pnn pno pnp pnr pnv pod poe poi pon poo pop por pov ppd ppe ppi ppn ppo ppp ppr ppv prd pre pri prn pro prp prr prv pvd pve pvi pvn pvo pvp pvr pvv rdd rde rdi rdn rdo rdp rdr rdv re- red ree rei ren reo rep rer rev rid rie rii rin rio rip rir riv rnd rni rnn rno rnp rnr rnv rod roe roi ron roo rop ror rov rpd rpe rpi rpn rpo rpp rpr rpv rrd rri rrn rrp rrr rvd rve rvi rvn rvo rvp rvr rvv v-e vdd vde vdi vdo vdp vdr vdv ved vee vei ven veo vep ver vi- vid vie vii vin vio vip vir viv vn- vnd vni vno vnp vnr vnv vod voe voi von voo vop vor vov vpd vpe vpi vpn vpo vpp vpr vrd vre vri vrn vrp vrr vvi vvo vvr vvv