-er -ic c-- ccc cce cci ccp ccr cct ccv ccx ce- cec cee cei cep cer cet cev cex ci- cic cie cii cip cir cit civ cix cpc cpe cpi cpp cpr cpt cpv cpx crc cre cri crp crr crt crv crx ctc cte cti ctp ctr ctt ctv ctx cvc cve cvi cvp cvr cvt cvv cvx cxc cxi cxp cxr cxt cxv cxx ec- ecc ece eci ecr ect ecv ecx eec eee eep eer eet eev eex eic eie eii eip eir eit eiv eix ep- epc epe epi epp epr ept epx erc ere eri erp err ert erv etc ete eti etp etr ett etv etx evc eve evi evp evr evt evv ex- exc exe exi exp exr ext exx i-v icc ice ici icp icr ict icv ie- iec iee iei iep ier iet iev iex iic iie iii iip iir iit iix ipc ipe ipi ipp ipr ipt ipv ipx ir- irc ire iri irp irr irt irv irx itc ite iti itp itt itv itx ivc ive ivi ivp ivr ivt ivv ivx ixc ixe ixi p-p pcc pce pci pcp pcr pct pcv pcx pec pee pei pep per pet pev pex pic pie pii pip pir pit piv pix ppc ppe ppi ppp ppr ppt ppv ppx prc pre pri prp prr prt prv prx pt- ptc pte pti ptp ptr ptt ptv ptx pvc pve pvi pvp pvr pvt pvv pxc pxe pxr pxt rcc rce rci rcp rcr rct rcv rcx re- rec ree rei rep rer ret rev rex ric rie rii rip rir rit riv rix rpc rpe rpi rpp rpr rpt rpv rpx rrc rri rrp rrr rrt rtc rte rti rtp rtr rtt rtv rtx rvc rve rvi rvp rvr rvt rvv rxp rxr t-x tcc tce tci tcp tcr tct tcv tcx te- tec tee tei tep ter tet tev tex tic tie tii tip tir tit tiv tix tpc tpe tpi tpp tpr tpt tpv tpx trc tre tri trp trr trt trv trx ttc tte tti ttp ttr ttt ttv ttx tvc tve tvi tvp tvr tvt tvx txe txi txt v-e vcc vce vci vcp vcr vct vcx vec vee vei vep ver vet vex vi- vic vie vii vip vir vit viv vix vpc vpe vpi vpp vpr vpt vpx vrc vre vri vrp vrr vrt vtc vte vti vtr vtt vtv vtx vvc vvi vvr vvt vvv vxr vxv xci xcp xcr xcv xcx xee xep xer xet xev xex xic xie xii xit xiv xix xpc xpe xpp xpt xrc xrt xrx xtc xti xtp xtr xtv xtx xvi xvt xxi xxp xxv xxx