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

[Q]: Sentence: 'people in different boats rowing around a lake'. How many words contain the letter 'b' in the sentence.
[A]: 1


[Q]: Sentence: 'people walking down the sidewalk with no turn signs'. How many words contain the letter 'e' in the sentence.
[A]: 3


[Q]: Sentence: 'a brown horse is running in the dirt'. How many words contain the letter 'c' in the sentence.
[A]:
0