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

[EX Q]: Sentence: 'a large clock mounted in the face of a building'. How many words contain the letter 'e' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'an old airplane sitting on top of a field'. How many words contain the letter 'h' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a person is walking down a path holding a bag and some kites'. How many words contain the letter 'w' in the sentence.
[EX A]:
2