<http://webisa.webdatacommons.org/119071055>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<enotes.com> .
<http://webisa.webdatacommons.org/prov/391529430>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/119071055> .
<http://webisa.webdatacommons.org/119071055>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/119071055>	<http://www.w3.org/ns/prov#value>	"The commonest cause of menstrual cramps is contractions of the uterus, which cause the organ to press against nearby blood vessels and cut off circulation to the uterus and other tissues." .