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

[EX Q]: Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
[EX A]: 6

[EX Q]: Sentence: 'a large clock tower under a grey cloudy sky'. How many words contain the letter 'l' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'well made be in clean and neat bedroom setting'. How many words contain the letter 'u' in the sentence.
[EX A]:
0