42442
Following construction of the Aswan Dam , basin irrigation is converted to perennial irrigation system , and this has significantly reduced the infection .
 location: Aswan Dam
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: Aswan Dam 
Answer:
 location: Aswan Dam