Task: Question Answering
Input (English): Context: The Ayalon River (Hebrew: , Nahal Ayalon; Nahr el-Barideh or Wadi Musrara in Arabic) is a perennial stream in Israel, originating in the Judean Hills and discharging into the Yarkon River in the area of Tel Aviv. 
 Question: What river does Ayalon River form a part of?
Output (English): yarkon river