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<http://webisa.webdatacommons.org/444971085>	<http://www.w3.org/ns/prov#value>	"of Negro displacement had begun, and trade unions were a most important part of this" .
<http://webisa.webdatacommons.org/444971085>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mackinac.org> .
<http://webisa.webdatacommons.org/prov/201805868>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/444971085> .