instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a large airplane flying over a dry grass hillside'. How many words contain the letter 'e' in the sentence.
answer:
4


question:
Sentence: 'a blue and white fire hydrant and two cars parked across the street'. How many words contain the letter 'y' in the sentence.
answer:
1


question:
Sentence: 'an elephant found calmly standing outside surrounded by plants'. How many words contain the letter 'b' in the sentence.
answer:

1