Aug 10 (Reuters) - Dean Foods Co's steeper-than-expected decline in quarterly sales and surprise departure of its chairman ahead of the earnings report sent shares of the largest U.S. milk processor down as much as 18 percent on Monday.
Refer to the input text as context and select the correct relationship between 'Dean Foods' and 'milk' from the available options.
Options: product/material produced, operator, owner of, owned by