QUADRUPOLE

ad ae al ar de do ed el er la lo od oe op or pa pe re up

ado ale alp ape apo are dal dap del doe dol dor due duo dup ear eau eld era lad lap lar lea led leu lop oar oda ode old ole ope ora ore oud our pad pal par pea ped per pod pol pro pud pul pur qua rad rap red rep rod roe rue udo ulu upo urd urp

aero aloe aped aper apod auld dale dare deal dear doer dole dopa dope dore dorp dour drop dual duel dupe dura dure duro earl euro lade lard laud lead leap lear leud load lode lope lord lore loud loup lour luau lude lure odea olea opal oped orad oral orle pale pard pare peal pear plea pled plod pole pore pour prao prau proa prod pula pule pure purl quad quod rale rape read real reap redo repo road rode role rope roue roup rude rued rule updo urea