Milk and other animal products are important as a food source contributing more than a third of the calories, and between a third and all of {HEAD ~ the major nutrients} in {TAIL ~ the U.S. food supply} 
Milk and other animal products are important as a food source contributing more than a third of the calories , and between a third and all of { HEAD ~ the major nutrients } in { TAIL ~ the U.S. food supply }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL