You will be given a sentence. Check whether the sentence is grammatically correct and is meaningful. If the sentence is grammatically correct, then answer with '1', otherwise answer with '0'.

[EX Q]: The policeman met several young students in the park last night.
[EX A]: 1

[EX Q]: I'll work on it if no one else had.
[EX A]: 1

[EX Q]: The pig grunt
[EX A]:
0