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

[EX Q]: Sentence: 'a motorcycle parked in front of a small cafe'. How many words contain the letter 'n' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a person standing in line for food at a food truck'. How many words contain the letter 'c' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a street sign reads steiner on the corner'. How many words contain the letter 'k' in the sentence.
[EX A]:
0