<descriptor thcode="25"><thesaurus thcode="25" name="Thesaurus categories" scope="Characteristics of thesauri, including general subjects such as place or theme, and structural or functional characteristics such as hierarchy and transitivity." creator="pschweitzer@usgs.gov" rights="public domain" date="2015-02-12" codetype="number" prefix="thcat" uri="http://www.usgs.gov/science/ThesaurusCategory" tblname="thterm" nonpref="thtermnp" relterm="thtermrt" root_code="1" contact="pschweitzer"><category><term thcode="25" code="23" name="information representation" parent="2" scope="Terms indicating the content, format, or packaging of information that may be available."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/><term thcode="25" code="23" name="information representation" parent="2" scope="Terms indicating the content, format, or packaging of information that may be available."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/></category></thesaurus><term thcode="25" code="23" name="information representation" parent="2" scope="Terms indicating the content, format, or packaging of information that may be available."/><bt><term thcode="25" code="2" name="(subjects)" parent="1" scope="Distinct segments of human knowledge, such as place, time, or theme."/><term thcode="25" code="1" name="Categories" scope="Characteristics applicable to entire controlled vocabularies.  We expect these terms to help people decide which vocabularies to use for particular purposes in the absence of official guidance."/></bt><nt><term thcode="25" code="25" name="information format" parent="23" scope="Terms indicating the format in which information is made available."/><term thcode="25" code="24" name="information product types" parent="23" scope="Terms categorizing information products by the content, intended use or audience, or formality."/></nt></descriptor>