| http://www.w3.org/ns/prov#value | - ledged to begin work on the exploitation of Poland???s shale gas resources, which are thought to be substantial.???There is a chance for us to be a leading country in this respect in the coming months,??? Mr. Grabowski said at a news conference, Reuters reported.There has been disappointment in Warsaw, which gets most of its energy from coal, at the failure of an expected shale gas boom to materia
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