256968
In fact , it was rediscovered by both Gregory and Leibniz and obtained by plugging x = 1 into the Leibniz series .
 person: Gregory
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: Gregory 
Answer:
 person: Gregory