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The question about why is there anything at all instead of nothing has been raised or commented on by philosophers including Gottfried Wilhelm Leibniz , Martin Heidegger − who called it the fundamental question of metaphysics − and Ludwig Wittgenstein .
 person: Gottfried Wilhelm Leibniz; person: Martin Heidegger; person: Ludwig Wittgenstein
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Gottfried Wilhelm Leibniz, Martin Heidegger, Ludwig Wittgenstein 
Answer:
 person: Gottfried Wilhelm Leibniz; person: Martin Heidegger; person: Ludwig Wittgenstein