]> A property that connects a sswap:Subject to a sswap:Object, or vice-versa. For services, this is usually used to establish the transformation from the input to the output. This property is directional (implies a mapping from the domain to the range), but can be used as its own inverse. So one may delineate a mapping from sswap:Subject to sswap:Object, and use another sswap:mapsTo to delineate a mapping from sswap:Object to sswap:Subject.