he read-only attribute <code>language</code> is a lowercase BCP-47 [[!BCP47]]
						string (for example, <code>en</code>, <code>en-gb</code>), or an empty string if the literal has no language.
						The value of the read-only attribute <code>datatype</code> is a <a href="#js-api-iri">NamedNode</a> representing the datatype IRI of the literal.
						Note that this <code>datatype</code> is never undefined, and language-tagged strings have <code>rdf:langString</code> as their datatype.
						The value of the 