instruction:
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'.
question:
Sarah promised her old car to Catherine, but then gave it to her son instead.
answer:
1

question:
We ate enough a pudding to satisfy us.
answer:
0

question:
The boy whose guardian's we elected employer president betrayed us.
answer:
0