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    { "id" : "http://dbpedia.org/resource/Pyroclastic_shield"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In volcanology, a pyroclastic shield or ignimbrite shield is an uncommon type of shield volcano. Unlike most shield volcanoes, pyroclastic shields are formed mostly of pyroclastic and highly explosive eruptions rather than relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano.They typically display low-angle flank slopes and often have a central caldera caused by large eruptions. Lava is commonly extruded after explosive activity has ended." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Emi_Koussi-Tibesti_Mountains-Chad.jpg?width=300"] } } }
