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

[Q]: Sentence: 'a little baby boy wearing an vest and tie'. How many words contain the letter 'e' in the sentence.
[A]: 4


[Q]: Sentence: 'a man walking with rolling luggage and many bags'. How many words contain the letter 'g' in the sentence.
[A]: 4


[Q]: Sentence: 'a person holding an umbrella walking down a street in front of a yellow house'. How many words contain the letter 'l' in the sentence.
[A]:
4