About: http://webisa.webdatacommons.org/193557048

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 diaphragm is preferably composed of a biologically compatible material that has been blended homogeneously, and preferably with, for example, a spermicide, such as Nonoxynol-9.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com