About: http://webisa.webdatacommons.org/68160628

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	This is usually the case when cysts, scar tissue, or other growths are blocking a portion of the tube, making it difficult or impossible for eggs to get past.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.org