<subjectCell> element contains subjects that are associated
with topics in the first column of the current row in the
<topicSubjectTable>. The subjects themselves have no defined relationship
across columns, other than the fact that they apply to the same content.
See appendix for information about this element in OASIS document type shells.
+ map/relcell classify-d/subjectCell
For a complete example in the context of the
<topicSubjectTable>, see Example.
The following attributes are available on this element: Universal attribute group
and Attributes common to many map elements
. This element also uses
@type from Link relationship attribute group