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Rick Strassman has hypothesized that the pineal gland , which maintains light sensitivity , is responsible for the production and release of DMT ( dimethyltryptamine ) , an entheogen which he believes possibly could be excreted in large quantities at the moments of birth and death .
 person: Rick Strassman
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: Rick Strassman 
Answer:
 person: Rick Strassman