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

[Q]: Sentence: 'a small terrier stands in the open suitcase ready to go'. How many words contain the letter 'l' in the sentence.
[A]: 1


[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 baseball player is on home base and is getting ready to bat'. How many words contain the letter 'n' in the sentence.
[A]:
3