About: http://webisa.webdatacommons.org/433550231

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	Drugs, such as sildenafil (Viagra??), vardenafil (Levitra??), and tadalafil (Cialis??), that can help men get an erection.
http://www.w3.org/ns/prov#wasQuotedFrom	cancer.org