10338
The city 's growth was helped by its excellent location , based on at least two factors : it had control over strategic and trading routes along the Tigris , and it had an abundance of water in a dry climate .
 location: Tigris
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Tigris