http://www.aktors.org/ontology/portal#address-pretty-label

used by 9:

• rkb-explorer-courseware
• rkb-explorer-darmstadt
• rkb-explorer-deepblue
• rkb-explorer-ft
• rkb-explorer-italy
• rkb-explorer-laas
• rkb-explorer-lisbon
• rkb-explorer-newcastle
• rkb-explorer-southampton