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

[Q]: Sentence: 'a line of very tall buildings next to a clock tower'. How many words contain the letter 'o' in the sentence.
[A]: 4


[Q]: Sentence: 'a woman watching another woman cook a dish in a wok on an electric hotplate'. How many words contain the letter 'y' in the sentence.
[A]: 0


[Q]: Sentence: 'there are some white cows walking in deep water'. How many words contain the letter 'b' in the sentence.
[A]:
0