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'.

Example Input: Heather cabled for Sara to come.
Example Output: 1

Example Input: Who do you think that has given the tickets to Bill?
Example Output: 0

Example Input: As it rains harder, how much faster a flow that appears in the river?
Example Output:
0