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

[EX Q]: Sentence: 'a teenager and child are fighting for a frisbee'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a young pitcher throws a ball on the pitchers mound while a man in red shirt looks at him'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'three zebras walk in a line together in the tall grass'. How many words contain the letter 'b' in the sentence.
[EX A]:
1