1436
Between 1767 and 1770 , he presented five papers to the Royal Society from these initial experiments ; the first four papers explored coronal discharges and other phenomena related to electrical discharge , while the fifth reported on the conductivity of charcoals from different sources .
 organization: Royal Society
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: Royal Society 
Answer:
 organization: Royal Society