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He served as professor of mechanics at the Royal Institution from 1817 to 1829 and in 1825 he delivered the inaugural Royal Institution Christmas Lecture .
 organization: Royal Institution; organization: Institution
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Royal Institution; organization: Institution