| http://www.w3.org/ns/prov#value | - For example, at lest one element selected from metallic elements including manganese, copper, silver, gold, tin, lead, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, cesium, titanium, chrome, and aluminum is activated.
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