About: http://webisa.webdatacommons.org/137556665

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	Such complexing agents include, for example, diketones, e.g. diacetyl and acetylacetone, ethyl acetoacetate, multiple ethers, e.g. the crown ethers, ammonia, nitriles and amines, preferably aliphatic and cycloaliphatic amines.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com