[ID] 2 [Location] 5.2.3 and 5.2.4 [Comment] The data types dateTimeDuration and yearMonthDuration are described as XForms data types, but they are data types defined in the XQuery Data Model specification. Please provide a reference to this specification from sec. 5.2.3 and 5.2.4. See also the related comment from the XML Core WG, which is basically the same. [Followup] FS [Ed. / Subs.] S [Subject] 
Reference to definition of data types missing