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

[EX Q]: Sentence: 'a business man is talking on the phone'. How many words contain the letter 'e' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a white sand beach with chairs umbrellas and people'. How many words contain the letter 't' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'an elephant is rubbing up against a tree'. How many words contain the letter 'z' in the sentence.
[EX A]:
0