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

[EX Q]: Sentence: 'a big sign that is lit up near some buildings'. How many words contain the letter 'r' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'an old motorcycle with the seat missing parked in a garage with other parts and motorcycles'. How many words contain the letter 'r' in the sentence.
[EX A]: 6

[EX Q]: Sentence: 'a group of skiers are outdoors playing in the snow'. How many words contain the letter 'w' in the sentence.
[EX A]:
1