Abstract
We report on ISO-Space version 1.4, an annotation specification for capturing spatial and spatiotemporal information in natural language that is now in its fourth incarnation. This version substantially improves upon earlier ISO-Space specifications in a few notable ways. The representation of locations is no longer overloaded such that geolocations have a more complete annotation and non-geolocations are captured with specific tags. In addition, interactions with existing annotation standards such as TimeML have been clarified. The treatment of spatial prepositions has been modified so that their annotation is more suggestive of what spatial relationships should hold between two spatial objects. Finally, spatial relationships are now captured with four distinct link tags: qualitative spatial links for topological relationships, orientation links for non-topological relations, movement links for motion, and measure links for detailing a metric relationship between two spatial objects or what the dimensions of a particular object are. The most recent version of the specification is presented with illustrative examples. We conclude with some outstanding issues that have yet to be captured in the
specification