About: http://webisa.webdatacommons.org/382931412

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	Any of various Lewis acids of the general formula MXn where M can be titanium, aluminum, boron, tin and others, and X is a halogen, are suitable for purposes of the invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk