29970
The modern bony fishes , class Osteichthyes , appeared in the late Silurian or early Devonian , about 416 million years ago .
 location: Silurian; location: Devonian
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: Silurian, Devonian 
Answer:
 location: Silurian; location: Devonian