<http://schema.org/ingredients>
"300 ml (10 fl oz) purple grape juice or 400 g (13 oz) fresh purple grapes, juiced"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.papertrell.com/apps/preview/Juice-Diet-Lose-7lbs-in-7-days/Juice%20Diet%20Recipe/Grapeberry-Cream-Smoothie/001225038/content/SC/537e22031725361e6c853a36_Default.html>