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"Sylvia Mangelsen is celebrating her birthday and since she is an Ingress gamer, she was given an Ingress cake.  Those who play Ingress are pretty hard core.  Ingress is a near-realtime augmented reali"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/photos/ingress-birthday-cake-16868.html>