In December 1995, puzzlemeister Will Shortz of Weekend Edition on National Public Radio issued the following challenge to listeners: write a grammatically-correct and readily-understandable statement that contains the same word four or more times in a row, as "That Texan can't drill a well well. Well, well drilling isn't easy." Over 800 replies were received, including such old chestnuts as "John, where James had had 'had', had had 'had had'.
Eckler, A. Ross
"A Soup Can Can Can-Can; Can You?,"
Word Ways: Vol. 29
, Article 9.
Available at: https://digitalcommons.butler.edu/wordways/vol29/iss2/9