Original sentence: In a 1979 taped interview, Jack Northrop claimed the flying wing contract was cancelled because Northrop Aircraft Corporation would not agree to a merger with competitor Convair as Stuart Symington wanted because Convair's merger demands were according to Jack Northrop "grossly unfair to Northrop"
Edited sentence: In a 1979 taped interview, Jack Northrop claimed the flying wing contract was cancelled because Northrop Aircraft Corporation would not agree to a merger with competitor Convair as Stuart Symington wanted, because Convair's merger demands according to Jack Northrop were "grossly unfair to Northrop"