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

[Q]: Sentence: 'a little girl sitting on the floor reading a book'. How many words contain the letter 'n' in the sentence.
[A]: 3


[Q]: Sentence: 'two giraffe a mom and baby both with their heads up'. How many words contain the letter 'w' in the sentence.
[A]: 2


[Q]: Sentence: 'a man with a surfboard hooked up to some parachute'. How many words contain the letter 'h' in the sentence.
[A]:
3