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

[Q]: Sentence: 'this is a yellow train riding the rails'. How many words contain the letter 'n' in the sentence.
[A]: 2

[Q]: Sentence: 'a television is sitting on a table in a room'. How many words contain the letter 'g' in the sentence.
[A]: 1

[Q]: Sentence: 'a white plate with some meat spaghetti and broccoli'. How many words contain the letter 'h' in the sentence.
[A]:
3