<http://webisa.webdatacommons.org/prov/270653201>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/431555763> .
<http://webisa.webdatacommons.org/431555763>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/431555763>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wikisource.org> .
<http://webisa.webdatacommons.org/431555763>	<http://www.w3.org/ns/prov#value>	"So far as can be determined at present, it belongs to no family not extinct, and is principally interesting on account of its great size, being about twenty-one feet long, without a head." .