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It was composed entirely with computer-generated animation , using an advanced version of the performance capture technique , previously used by director Robert Zemeckis in " The Polar Express " .
 person: Robert Zemeckis; media: The Polar Express
Please list all entity words in the text that fit the category.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} 
Answer:
 person: Robert Zemeckis; media: The Polar Express