TETRAPOLAR

aa ae al ar at el er et la lo oe op or pa pe re ta to

aal ala ale alp alt ape apo apt are art ate att ear eat era err eta lap lar lat lea let lop lot oar oat ole ope opt ora ore ort pal par pat pea per pet pol pot pro rap rat rep ret roe rot tae tao tap tar tat tea tel tet toe top tor tot

aero alae alar aloe alto aper area atap atop earl late leap lear lept lope lore lota olea opal oral orle orra pale para pare parr part pate peal pear peat pelt pert plat plea plot poet pole pore port prao prat proa rale rape rapt rare rate rato real reap rear repo roar role rope rota rote rotl tael tala tale tapa tape tare taro tarp tart tate teal tear teat tela tepa toea tola tole tope tora tore torr tort tote trap tret trop trot