50240
In tests against a control , Sprague-Dawley rats given free access to less-preferred rat chow and trained to operate a lever repeatedly to obtain preferred rat chow performed additional work when given methylphenidate , d-amphetamine , and phenylpiracetam .
 person: Sprague-Dawley
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: Sprague-Dawley 
Answer:
 person: Sprague-Dawley