TASK DEFINITION: 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'.
PROBLEM: Sandy taught the children the alphabet, but only got as far as the letter `` r ''.

SOLUTION: 1

PROBLEM: They hit the ball.

SOLUTION: 1

PROBLEM: Any senator seems to become more corrupt, if he talks to more lobbyists.

SOLUTION:
1