About: http://webisa.webdatacommons.org/313422811

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	The ethylenically unsaturated sulphonic or phosphonic acid may contain 2-20 carbons, especially 2-6 carbons, such as alkenyl acids, e.g. vinyl sulphonic and vinyl phosphonic acid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de