About: http://webisa.webdatacommons.org/414725792

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	r, such as tobacco, rice, and eventually cotton.Art. I, Sec. 10, Cl. 2, prohibited the states from taxing exports or imports, thus preventing an indirect tax on the products of slave labor by anonslaveholding state.
http://www.w3.org/ns/prov#wasQuotedFrom	racism.org