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

[Q]: Sentence: 'a smiling  woman wearing a hat holds up a snowboard'. How many words contain the letter 'b' in the sentence.
[A]: 1


[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 black bird standing next to an apple'. How many words contain the letter 'e' in the sentence.
[A]:
2