| http://www.w3.org/ns/prov#value | - Investigators at the scene discovered a large cache of toxic materials, including thousands of rounds of corroded ammunition, highly reactive lead-contaminated waste from shooting ranges, hundreds of pounds of decades-old gunpowder and military M6 cannon powder, and industrial solvents that contained 1,1,1-trichloroethane and tetrachloroethylene (two potent chemicals that are listed as hazardous s
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