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

[Q]: Sentence: 'a room with a small light in the middle with a computer'. How many words contain the letter 's' in the sentence.
[A]: 1


[Q]: Sentence: 'the street corner is flooded deep with water'. How many words contain the letter 'f' in the sentence.
[A]: 1


[Q]: Sentence: 'the cow is chewing on a mouth full of hay'. How many words contain the letter 's' in the sentence.
[A]:
1