12608
It was proved in 1951 by Murray Gell-Mann and Francis E. Low .
 person: Murray Gell-Mann; person: Francis E. Low
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: Murray Gell-Mann, Francis E. Low 
Answer:
 person: Murray Gell-Mann; person: Francis E. Low