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

[Q]: Sentence: 'a very cute white dog standing by a table with food'. How many words contain the letter 'o' in the sentence.
[A]: 2


[Q]: Sentence: 'some people standing around a line of tennis courts'. How many words contain the letter 'c' in the sentence.
[A]: 1


[Q]: Sentence: 'a man stands on the tracks in front of a parked train'. How many words contain the letter 'i' in the sentence.
[A]:
2