67747
It currently contains a single valid species , " Pectinodon bakkeri " ( sometimes classified as " Troodon bakkeri " ) , known only from teeth .
 location: Troodon
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: Troodon 
Answer:
 location: Troodon