-er -ic c-- ccc ccd cce cci ccn cco ccp ccr ccv cdc cdd cde cdi cdn cdo cdp cdr cdv ce- cec ced cee cei cen ceo cep cer cev ci- cic cid cie cii cin cio cip cir civ cn- cnc cnd cne cni cnn cno cnp cnr cnv co- coc cod coe coi con coo cop cor cov cpc cpd cpe cpi cpn cpo cpp cpr cpv crc crd cre cri crn cro crp crr crv cvc cvd cve cvi cvn cvo cvp cvr cvv dcc dcd dce dci dcn dco dcp dcr dcv ddc ddd dde ddi ddn ddo ddp ddr de- dec ded dee dei den deo dep der dev di- dic did die dii din dio dip dir div dnc dnd dne dni dnn dno dnp dnr doc dod doe doi don doo dop dor dov dpc dpd dpe dpi dpn dpo dpp dpr dpv drc drd dre dri drn dro drp drr drv dvc dvd dve dvi dvn dvp dvr ec- ecc ecd ece eci ecn eco ecr ecv ed- edc edd ede edi edn edo edp edr eec eed eee een eeo eep eer eev eic eid eie eii ein eio eip eir eiv en- enc end ene eni enn eno enp enr env eo- eoc eod eoe eoi eon eoo eop eor ep- epc epd epe epi epn epo epp epr erc erd ere eri ern ero erp err erv evc evd eve evi evn evo evp evr evv i-d i-v icc icd ice ici icn ico icp icr icv idc idd ide idi idn ido idp idr idv ie- iec ied iee iei ien iep ier iev iic iid iie iii iin iio iip iir in- inc ind ine ini inn ino inp inr inv io- ioc iod ioe ioi ion ioo iop ior iov ipc ipd ipe ipi ipn ipo ipp ipr ipv ir- irc ird ire iri irn iro irp irr irv ivc ivd ive ivi ivo ivp ivr ivv n-i ncc ncd nce nci ncn nco ncp ncr ncv ndc ndd nde ndi ndn ndo ndp ndr ndv ne- nec ned nee nei nen neo nep ner nev nic nid nie nii nin nio nip nir niv nnc nne nni nnn nno nnp nnv no- noc nod noe noi non noo nop nor nov npc npd npe npi npn npo npp npr npv nrc nrd nre nri nrn nro nrp nrr nrv nvc nvd nve nvi nvn nvp nvv o-i oc- occ ocd oci ocn oco ocp ocr ocv odc odd ode odi odn odo odp odr odv oec oed oee oei oen oeo oep oer oic oid oie oii oin oio oip oir oiv on- onc ond one oni onn ono onp onr oo- ooc ood ooi oon ooo oop oor oov op- opc opd ope opi opn opo opp opr opv or- orc ord ore ori orn oro orp orr orv ov- ovc ovd ove ovi ovo ovp ovv p-p pcc pcd pce pci pcn pco pcp pcr pcv pdc pdd pde pdi pdn pdo pdp pdr pdv pec ped pee pei pen peo pep per pev pic pid pie pii pin pio pip pir piv pn- pnc pnd pne pni pnn pno pnp pnr pnv poc pod poe poi pon poo pop por pov ppc ppd ppe ppi ppn ppo ppp ppr ppv prc prd pre pri prn pro prp prr prv pvc pvd pve pvi pvn pvo pvp pvr pvv rcc rcd rce rci rcn rco rcp rcr rcv rdc rdd rde rdi rdn rdo rdp rdr rdv re- rec red ree rei ren reo rep rer rev ric rid rie rii rin rio rip rir riv rnc rnd rni rnn rno rnp rnr rnv roc rod roe roi ron roo rop ror rov rpc rpd rpe rpi rpn rpo rpp rpr rpv rrc rrd rri rrn rrp rrr rvc rvd rve rvi rvn rvo rvp rvr rvv v-e vcc vcd vce vci vcn vco vcp vcr vdc vdd vde vdi vdo vdp vdr vdv vec ved vee vei ven veo vep ver vi- vic vid vie vii vin vio vip vir viv vn- vnd vni vno vnp vnr vnv voc vod voe voi von voo vop vor vov vpc vpd vpe vpi vpn vpo vpp vpr vrc vrd vre vri vrn vrp vrr vvc vvi vvo vvr vvv