<geogFeat> (geographical feature name) contains a common noun identifying some geographical feature
contained within a geographic name, such as valley, mount, etc. [14.2.3 Place Names]
<sch:rule context="tei:*[@calendar]"> <sch:assert test="string-length( normalize-space(.) ) gt 0"> @calendar indicates one or more systems or calendars to which the date represented by the content of this element
belongs, but this <sch:name/> element has no textual content.</sch:assert> </sch:rule>