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

[EX Q]: Sentence: 'people holding a surfboard and walking down the beach'. How many words contain the letter 'n' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a bench is in the ocean water with a fishing pole'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a couple of people with backpacks riding bicycles down a road'. How many words contain the letter 'h' in the sentence.
[EX A]:
1