<http://schema.org/ingredients>
"0.25 c. pure maple syrup"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.redbookmag.com/food-recipes/recipes/a26709/maple-glazed-sweet-potatoes-pecans-rbk1107/?link=emb&dom=yah_life&src=syn&con=blog_redbook&mag=rbk>