instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'an asian man ad woman on their cell phones'. How many words contain the letter 'i' in the sentence.
answer:
2

question:
Sentence: 'a persons desk with a computer and many books in a case behind it'. How many words contain the letter 'd' in the sentence.
answer:
3

question:
Sentence: 'a cluttered work desk with a cat laying on it'. How many words contain the letter 'z' in the sentence.
answer:
0