AEI

--- -O-U

• ___, O, U

• ___, O, U, and sometimes Y

• First three of five

• O-U lead-ins

• OU opening

• Scholarly org. that employs Robert Bork and Newt Gingrich

• Series of letters before O

• Series of vowels before O

• Start of a vowel sequence

• Start of an alphabetic group

• Three before O-U

• Three of Y's half-brothers?

• Vowel sequence

• Vowel trio

• Vowel-sequence start