PUPILDOM

do id li lo mi mo mu od oi om op pi um up

dim dip dol dom dui duo dup imp lid lip lop lum mid mil mod mol mop mud oil old oud pip piu pod poi pol pom pop pud pul pup udo ump upo

diol doum dump idol lido limo limp loid loud loup lump mild milo modi moil mold pimp plod plop plum pomp puli pulp pump updo