45641
Other ocean species occasionally visit the lower reaches of the rivers ; bull sharks ( " Carcharhinus leucas " ) used to swim up the Tigris as far as Baghdad .
 location: Tigris; location: Baghdad
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: Tigris, Baghdad 
Answer:
 location: Tigris; location: Baghdad