<http://schema.org/ingredients>
"1 lb. sweet potatoes, peeled and cut into \u00BD-in. pieces"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.womansday.com/food-recipes/food-drinks/recipes/a11662/sweet-potato-and-couscous-chicken-soup-recipe/?src=shelter_footer>