-er a-a aaa aad aae aam aap aar ad- ada add ade adm adp adr aea aed aee aem aep aer ama amd ame amm amp amr ap- apa apd ape apm app apr ar- ara ard are arm arp arr daa dad dae dam dap dar dda ddd dde ddm ddp ddr de- dea ded dee dem dep der dma dmd dme dmm dmp dmr dpa dpd dpe dpm dpp dpr dra drd dre drm drp drr eaa ead eae eam eap ear ed- eda edd ede edm edp edr eea eed eee eem eep eer em- ema emd eme emm emp emr ep- epa epd epe epm epp epr era erd ere erm erp err m-r maa mad mae mam map mar mda mdd mde mdm mdp mdr mea med mee mem mep mer mma mmd mme mmm mmp mmr mpa mpd mpe mpm mpp mpr mra mrd mre mrm mrp mrr p-p paa pad pae pam pap par pda pdd pde pdm pdp pdr pea ped pee pem pep per pma pmd pme pmm pmp pmr ppa ppd ppe ppm ppp ppr pra prd pre prm prp prr ra- raa rad rae ram rap rar rda rdd rde rdm rdp rdr re- rea red ree rem rep rer rma rmd rme rmm rmp rmr rpa rpd rpe rpm rpp rpr rra rrd rrm rrp rrr