<http://schema.org/mainEntityOfPage>
<http://www.redbookmag.com/food-recipes/recipes/a32351/grilled-portabella-burgers-pesto-mayo-recipe-rbk0811/True>
<http://www.redbookmag.com/food-recipes/recipes/a32351/grilled-portabella-burgers-pesto-mayo-recipe-rbk0811/>