-er eee eel eep eer eie eii eil eip eir ele eli ell elp elr ep- epe epi epl epp epr ere eri erl erp err ie- iee iei iel iep ier iie iii iil iip iir il- ile ili ill ilp ilr ipe ipi ipl ipp ipr ir- ire iri irl irp irr l-p lee lei lel lep ler lie lii lil lip lir lle lli lll llp llr lpe lpi lpl lpp lpr lri lrp lrr p-p pee pei pel pep per pie pii pil pip pir ple pli pll plp plr ppe ppi ppl ppp ppr pre pri prl prp prr re- ree rei rel rep rer rie rii ril rip rir rle rli rll rlp rlr rpe rpi rpl rpp rpr rri rrl rrp rrr