| http://www.w3.org/ns/prov#value | - of nutritional superiority.Organic food, devoid of additives and produced without chemicals such as fertilisers and pesticides, has become an increasingly popular choice on supermarket shelves in recent years.But it is typically more expensive than regular foodstuffs, and as such has already been hit by the global recession, making shoppers think twice about paying more for organically-grown veg
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