http://docs.oasis-open.org/wsn/bw-2/NotificationProducer/SubscribeRequest http://receiver.org/consumer location 13.0983 31.5899 35.5472 42.8143 2012-09-16T00:00:00Z http://host.org/pubsub/publication/aircraft http://docs.oasis-open.org/wsn/b-2/NotificationConsumer text/xml