TASK DEFINITION: You are given an original reference as well as a system generated reference. Your task is to judge the naturaleness of the system generated reference. If the utterance could have been produced by a native speaker output 1, else output 0.
PROBLEM: System Reference: there is a spanish restaurant called piperade.
Original Reference: do you want to try piperade, its spanish food.

SOLUTION: 1

PROBLEM: System Reference: x is a restaurant in x on and to x.
Original Reference: i recommend x a restaurant near x and x in x.

SOLUTION: 0

PROBLEM: System Reference: marlowe, is near the mission bay.
Original Reference: the marlowe is found near mission bay.

SOLUTION:
1