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

[EX Q]: Sentence: 'a pair of zebras looking towards the camera in a barren field'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an orange cat laying on top of a wooden table'. How many words contain the letter 'l' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a couple of cows graze on some grass'. How many words contain the letter 'k' in the sentence.
[EX A]:
0