<http://schema.org/about>
"California-based True Leaf Farms is recalling 90 cartons of chopped romaine lettuce as it may be contaminated with listeria, though no related illnesses have be"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/healthy-eating/stories/california-lettuce-recalled-over-listeria-concerns>