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

[EX Q]: Sentence: 'adult men playing with flying disc at popular beach'. How many words contain the letter 'o' in the sentence.
[EX A]: 1

[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: 'a four post bed with hanging curtains around it'. How many words contain the letter 'z' in the sentence.
[EX A]:
0