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<http://webisa.webdatacommons.org/prov/436066666>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/102064769> .
<http://webisa.webdatacommons.org/102064769>	<http://www.w3.org/ns/prov#value>	"Anecdotal evidence suggests it can cause serious illness: The Egyptian riot police saturated downtown Cairo with CR gas for several days in November, and hundreds of protesters and journalists reported respiratory problems and other ailments." .
<http://webisa.webdatacommons.org/102064769>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<aljazeera.com> .