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<http://webisa.webdatacommons.org/367399246>	<http://www.w3.org/ns/prov#value>	"Radioactivity is a property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously." .
<http://webisa.webdatacommons.org/prov/63926382>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/367399246> .
<http://webisa.webdatacommons.org/367399246>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<123helpme.com> .