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:
Fred threw the ball behind the tree.

Ex Output:
1


Ex Input:
the book with a red cover from Blackwell of poems by Robert Burns takes a very long time to read.

Ex Output:
0


Ex Input:
The maple changed into an oak.

Ex Output:

1