2.2.4 p and tr Extensions
Any p or tr element specified in [ISO/IEC29500-1:2011] section 17 is extended by the addition of any of the following attributes: paraId, textId. Any p element specified in [ISO/IEC29500-1:2011] section 17 is extended by the addition of the following attribute: noSpellErr. To maintain compatibility with ISO/IEC-29500 implementations, the attribute’s namespace prefix MUST be specified in an Ignorable attribute ([ISO/IEC29500-3:2011] section 10.1.1).