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

[Q]: Sentence: 'a person leaning on an elephant statue near trees'. How many words contain the letter 's' in the sentence.
[A]: 3


[Q]: Sentence: 'two children practicing for a ski race without poles'. How many words contain the letter 'e' in the sentence.
[A]: 3


[Q]: Sentence: 'a small yacht is traveling on a river'. How many words contain the letter 'e' in the sentence.
[A]:
2