-er eee eel eep eer eev ele ell elp elr elv ep- epe epl epp epr ere erl erp err erv eve evl evp evr evv l-p lee lel lep ler lev lle lll llp llr llv lpe lpl lpp lpr lpv lrp lrr lrv lve lvl lvp lvr lvv p-p pee pel pep per pev ple pll plp plr plv ppe ppl ppp ppr ppv pre prl prp prr prv pve pvl pvp pvr pvv re- ree rel rep rer rev rle rll rlp rlr rpe rpl rpp rpr rpv rrl rrp rrr rve rvl rvp rvr rvv v-e vee vel vep ver vl- vle vll vlp vlv vpe vpl vpp vpr vre vrp vrr vvr vvv