384690
In 1969 , the line was electrified and new improved regional service was added to İstanbul .
 location: İstanbul
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: İstanbul 
Answer:
 location: İstanbul