A reference to a SUBDOC or unparsed (CDATA, SDATA, NDATA) entity cannot be allowed at the current point. The entity's text will not be processed.
#0033 Markup Error
ISO 8879, 9.4
A reference to a SUBDOC or unparsed (CDATA, SDATA, NDATA) entity cannot be allowed at the current point. The entity's text will not be processed.