| http://www.w3.org/ns/prov#value | - Thanks to in-built sensing technologies, such as a GPS, a compass, a camera and a microphone, a smart phone can first determine your local context (e.g. you are standing in front of the Opera building at sunset facing West while hearing some music playing in the background), then send that information to the GB together with any queries you may have (e.g. what is that melody? who designed that bui
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