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<http://webisa.webdatacommons.org/prov/319481163>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/214228679> .
<http://webisa.webdatacommons.org/214228679>	<http://www.w3.org/ns/prov#value>	"Weight Watchers encourages eating what it calls Power Foods???foods that are particularly nutritious and satisfying, such as lean protein, whole grains, and low-fat or fat-free dairy products." .