Please add some text that states "The Position may optionally have a vertical extent or extend over a temporal interval". This makes it more consistent with the following Area query.
The Area query also needs text along the lines of "...or extend over a temporal interval"
Please add some text that states "The Position may optionally have a vertical extent or extend over a temporal interval". This makes it more consistent with the following Area query.
The Area query also needs text along the lines of "...or extend over a temporal interval"