TETRAPTERON

ae an ar at en er et na ne no oe on op or pa pe re ta to

ane ant ape apo apt are art ate att ear eat eon era ere ern err eta nae nap nee net nor not oar oat one ope opt ora ore ort pan par pat pea pee pen per pet pot pro ran rap rat ree rep ret roe rot tae tan tao tap tar tat tea tee ten tet toe ton top tor tot

aeon aero ante aper atop earn erne etna nape neap near neat neep nett nope nota note open orra pane pant pare parr part pate pean pear peat peen peer pent peon pere pert poet pone pore porn port prao prat pree proa rant rape rapt rare rate rato reap rear rent repo rete roan roar rope rota rote tape tare tarn taro tarp tart tate tear teat teen tent tepa tern toea tone tope tora tore torn torr tort tote trap tree tret trop trot