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He then worked for 3 years at the Wellcome Physiological Research Laboratories and in 1922 joined the National Institute for Medical Research where he became director of biological samples .
 person: Wellcome Physiological Research Laboratories; organization: Medical Research
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Wellcome Physiological Research Laboratories, Medical Research 
Answer:
 person: Wellcome Physiological Research Laboratories; organization: Medical Research