PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The reaction may also be carried out by reacting a carboxylic acid with a halogenating agent such as thionyl chloride, oxalyl chloride, phosphorus oxychloride, etc. to convert the acid into a reactive derivative such as an acid halide and then reacting the reactive derivative with a primary or secondary amine.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com