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

[Q]: Sentence: 'the boy is in batting stance to waiting'. How many words contain the letter 'h' in the sentence.
[A]: 1


[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: 'four people in the ocean with surfboard with one woman standing on a board'. How many words contain the letter 'd' in the sentence.
[A]:
3