-er -ic a-a a-c a-i aaa aac aad aae aai aap aar aav ac- aca acc acd ace aci acp acr acv ad- ada adc add ade adi adp adr adv aea aec aed aee aei aep aer aev ai- aia aic aid aie aii aip air aiv ap- apa apc apd ape api app apr apv ar- ara arc ard are ari arp arr arv av- ava avc avd ave avi avp avr c-- caa cac cad cae cai cap car cav cca ccc ccd cce cci ccp ccr ccv cda cdc cdd cde cdi cdp cdr cdv ce- cea cec ced cee cei cep cer cev ci- cia cic cid cie cii cip cir civ cpa cpc cpd cpe cpi cpp cpr cpv cra crc crd cre cri crp crr crv cva cvc cvd cve cvi cvp cvr cvv daa dac dad dae dai dap dar dav dca dcc dcd dce dci dcp dcr dcv dda ddc ddd dde ddi ddp ddr de- dea dec ded dee dei dep der dev di- dia dic did die dii dip dir div dpa dpc dpd dpe dpi dpp dpr dpv dra drc drd dre dri drp drr drv dva dvc dvd dve dvi dvp dvr eaa eac ead eae eai eap ear eav ec- eca ecc ecd ece eci ecr ecv ed- eda edc edd ede edi edp edr eea eec eed eee eep eer eev eia eic eid eie eii eip eir eiv ep- epa epc epd epe epi epp epr era erc erd ere eri erp err erv eva evc evd eve evi evp evr evv i-d i-v ia- iaa iac iad iae iai iap iar iav ica icc icd ice ici icp icr icv ida idc idd ide idi idp idr idv ie- iea iec ied iee iei iep ier iev iia iic iid iie iii iip iir ipa ipc ipd ipe ipi ipp ipr ipv ir- ira irc ird ire iri irp irr irv iva ivc ivd ive ivi ivp ivr ivv p-p paa pac pad pae pai pap par pav pca pcc pcd pce pci pcp pcr pcv pda pdc pdd pde pdi pdp pdr pdv pea pec ped pee pei pep per pev pia pic pid pie pii pip pir piv ppa ppc ppd ppe ppi ppp ppr ppv pra prc prd pre pri prp prr prv pva pvc pvd pve pvi pvp pvr pvv ra- raa rac rad rae rai rap rar rav rca rcc rcd rce rci rcp rcr rcv rda rdc rdd rde rdi rdp rdr rdv re- rea rec red ree rei rep rer rev ria ric rid rie rii rip rir riv rpa rpc rpd rpe rpi rpp rpr rpv rra rrc rrd rri rrp rrr rva rvc rvd rve rvi rvp rvr rvv v-a v-e vaa vac vad vae vai vap var vav vca vcc vcd vce vci vcp vcr vdc vdd vde vdi vdp vdr vdv vea vec ved vee vei vep ver vi- via vic vid vie vii vip vir viv vpa vpc vpd vpe vpi vpp vpr vra vrc vrd vre vri vrp vrr vva vvc vvi vvr vvv