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 Input:
Tabs were kept on all persons entering the station.

Ex Output:
1

Ex Input:
Who did Athena introduce who to?

Ex Output:
0

Ex Input:
Fred had a snake behind the car Joe was sitting in.

Ex Output:
1