| http://www.w3.org/ns/prov#value | - It???s conceivable to imagine a lighter weight version of this concept, which ??? for instance ??? could track what a mobile user is looking at via cameras on the front of their device and monitor additional physiological reactions by syncing with any connected wearables they have on their person, combining those inputs to make judgements on how engaged they are in particular content, for instance
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