instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
answer:
6


question:
Sentence: 'a street scene with cars and an city bus'. How many words contain the letter 's' in the sentence.
answer:
4


question:
Sentence: 'a car over turned on a city street'. How many words contain the letter 'g' in the sentence.
answer:

0