In this task, you need to count the number of words in a sentence that contain the given letter

[Q]: Sentence: 'three people that are looking at a monitor on the left side of the photo'. How many words contain the letter 'd' in the sentence.
[A]: 1


[Q]: Sentence: 'trash cans and a fire hydrant are on the curb of a sidewalk'. How many words contain the letter 'u' in the sentence.
[A]: 1


[Q]: Sentence: 'a man sitting in front of a laptop computer'. How many words contain the letter 'f' in the sentence.
[A]:
2