72097
The great blue heron is replaced in the Old World by the very similar grey heron ( " Ardea cinerea " ) , which differs in being somewhat smaller ( ) , with a pale gray neck and legs , lacking the browner colors that the great blue heron has there .
 location: Old World
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Old World 
Answer:
 location: Old World