| http://www.w3.org/ns/prov#value | - Water and metal absorb the radio waves that most RFID tags use; but more careful tag positioning, and using newer RFID tags that are optimized for placement near liquids and metal, could mitigate this.When our approach is used outside a familiar environment, such as the home, we obtain the geocoding with the Google API to find out the place and address where the user is.
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