About: http://webisa.webdatacommons.org/193576639

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 first and second generations faced problems such as poor bioavailability and lack of potency.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org