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

[EX Q]: Sentence: 'an elephant that is eating some leaves from a tree'. How many words contain the letter 'n' in the sentence.
[EX A]: 3

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

[EX Q]: Sentence: 'a child sleeping with a teddy bear on a bed'. How many words contain the letter 'h' in the sentence.
[EX A]:
2