title: RDF vocabulary for units
body: <p>I am looking for a RDF vocabulary that describes the unit <a href="https://en.wikipedia.org/wiki/Gross_tonnage" rel="nofollow noreferrer"><strong>gross tonnage</strong></a>. I have browsed the <a href="http://qudt.org/vocab/unit/#" rel="nofollow noreferrer">qudt</a> unit vocabulary without finding the unit I am looking for. Can't seem to find a vocabulary describing gross tonnage when searching around either. Does anyone know a vocabulary I can dive into to find this unit?</p>