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:
the enemy's destruction of the city was horrific.

Ex Output:
1


Ex Input:
The person with who we were talking left.

Ex Output:
0


Ex Input:
Tonight, what Bob cooked yesterday still tastes good, so tonight it will be eaten up.

Ex Output:

1