19784
The elder Pliny reported Pamphila of Kos , daughter of Plateas , discovered the secret of silk manufacture .
 person: The elder Pliny
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: The elder Pliny 
Answer:
 person: The elder Pliny