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<http://webisa.webdatacommons.org/356881173>	<http://www.w3.org/ns/prov#value>	"Ready-mix concrete is comprised of cement, aggregate (sand and gravel), water and other additives." .
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<http://webisa.webdatacommons.org/356881173>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<paintsquare.com> .