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

[Q]: Sentence: 'some people at a table with food and drinks'. How many words contain the letter 'n' in the sentence.
[A]: 2


[Q]: Sentence: 'a man that is sitting on a horse in the grass'. How many words contain the letter 'y' in the sentence.
[A]: 0


[Q]: Sentence: 'a group of people sitting in front of a giant christmas tree'. How many words contain the letter 'p' in the sentence.
[A]:
2