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

[EX Q]: Sentence: 'the train needs to be serviced so it is o the truck'. How many words contain the letter 'n' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a little boy learning to throw a frisbee'. How many words contain the letter 'h' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a stop sign on the sidewalk at the edge of an intersection'. How many words contain the letter 'm' in the sentence.
[EX A]:
0