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: 'five kids playing with frisbees on a sunny day'. How many words contain the letter 'p' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man and a lady on the street with others'. How many words contain the letter 'z' in the sentence.
[EX A]:
0