118371
This is the first description of managanese metal several years before the better known synthesis of Johan Gottlieb Gahn in 1774 .
 person: Johan Gottlieb Gahn
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: Johan Gottlieb Gahn 
Answer:
 person: Johan Gottlieb Gahn