-er -ic b-p bbb bbc bbd bbe bbi bbp bbr bbt bcb bcc bcd bce bci bcp bcr bct bcv bdb bdc bdd bde bdi bdp bdr bdt bdv be- beb bec bed bee bei bep ber bet bev bi- bib bic bid bie bii bip bir bit biv bpb bpc bpd bpe bpi bpp bpr bpt bpv brb brd bre bri brp brr brt brv btb btc btd bte bti btp btr btt btv bvb bvc bvd bve bvi bvp bvr bvt bvv c-- cbb cbc cbd cbe cbi cbp cbr cbt cbv ccb ccc ccd cce cci ccp ccr cct ccv cdb cdc cdd cde cdi cdp cdr cdt cdv ce- ceb cec ced cee cei cep cer cet cev ci- cib cic cid cie cii cip cir cit civ cpb cpc cpd cpe cpi cpp cpr cpt cpv crb crc crd cre cri crp crr crt crv ctb ctc ctd cte cti ctp ctr ctt ctv cvb cvc cvd cve cvi cvp cvr cvt cvv dbb dbc dbd dbe dbi dbp dbr dbt dbv dcb dcc dcd dce dci dcp dcr dct dcv ddb ddc ddd dde ddi ddp ddr ddt de- deb dec ded dee dei dep der det dev di- dib dic did die dii dip dir dit div dpb dpc dpd dpe dpi dpp dpr dpt dpv drb drc drd dre dri drp drr drt drv dtb dtc dtd dte dti dtp dtr dtt dtv dvb dvc dvd dve dvi dvp dvr dvt ebb ebc ebd ebe ebi ebp ebr ebt ebv ec- ecb ecc ecd ece eci ecr ect ecv ed- edb edc edd ede edi edp edr edt eeb eec eed eee eep eer eet eev eib eic eid eie eii eip eir eit eiv ep- epb epc epd epe epi epp epr ept erb erc erd ere eri erp err ert erv etb etc etd ete eti etp etr ett etv evb evc evd eve evi evp evr evt evv i-d i-v ibb ibc ibd ibe ibi ibp ibr ibt ibv icb icc icd ice ici icp icr ict icv idb idc idd ide idi idp idr idt idv ie- iec ied iee iei iep ier iet iev iib iic iid iie iii iip iir iit ipb ipc ipd ipe ipi ipp ipr ipt ipv ir- irb irc ird ire iri irp irr irt irv itb itc itd ite iti itp itt itv ivb ivc ivd ive ivi ivp ivr ivt ivv p-p pbb pbc pbd pbe pbi pbp pbr pbt pcb pcc pcd pce pci pcp pcr pct pcv pdb pdc pdd pde pdi pdp pdr pdt pdv peb pec ped pee pei pep per pet pev pib pic pid pie pii pip pir pit piv ppb ppc ppd ppe ppi ppp ppr ppt ppv prb prc prd pre pri prp prr prt prv pt- ptb ptc ptd pte pti ptp ptr ptt ptv pvb pvc pvd pve pvi pvp pvr pvt pvv rbb rbc rbd rbe rbi rbp rbr rbt rcb rcc rcd rce rci rcp rcr rct rcv rdb rdc rdd rde rdi rdp rdr rdt rdv re- reb rec red ree rei rep rer ret rev rib ric rid rie rii rip rir rit riv rpb rpc rpd rpe rpi rpp rpr rpt rpv rrb rrc rrd rri rrp rrr rrt rtb rtc rtd rte rti rtp rtr rtt rtv rvb rvc rvd rve rvi rvp rvr rvt rvv tbb tbc tbd tbe tbi tbp tbr tbt tbv tcb tcc tcd tce tci tcp tcr tct tcv tdb tdc tdd tde tdi tdp tdr tdt tdv te- teb tec ted tee tei tep ter tet tev tib tic tid tie tii tip tir tit tiv tpb tpc tpd tpe tpi tpp tpr tpt tpv trb trc trd tre tri trp trr trt trv ttb ttc ttd tte tti ttp ttr ttt ttv tvb tvc tvd tve tvi tvp tvr tvt v-e vbc vbd vbi vbr vbv vcc vcd vce vci vcp vcr vct vdb vdc vdd vde vdi vdp vdr vdt vdv veb vec ved vee vei vep ver vet vi- vib vic vid vie vii vip vir vit viv vpb vpc vpd vpe vpi vpp vpr vpt vrb vrc vrd vre vri vrp vrr vrt vtb vtc vte vti vtr vtt vtv vvb vvc vvi vvr vvt vvv