Type: Monolingual text
[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
"Monolingual text" is a container datatype that associates a text value with a specific language code. The datatype does require a language code (i.e. a value annotation without a language code is not accepted).