Question: Karim Khalaf was Mayor of which West Bank city for 10 years in the late 20th century?
Sentence (from "Ramallah"): Ramallah (Arabic: رام الله‎ ‎   ) is a Palestinian city in the central West Bank located 10 km north of Jerusalem at an average elevation of 880 meters above sea level, adjacent to al-Bireh.
Relevant evidence: Yes