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

[EX Q]: Sentence: 'a person in the air on skis on a mountain slope'. How many words contain the letter 'w' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a zebra is standing in the shallow water'. How many words contain the letter 't' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a man with his arm stretched out with a mit in hand'. How many words contain the letter 'o' in the sentence.
[EX A]:
1