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

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

[EX Q]: Sentence: 'a tree by a house has a traffic sign attached to it'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a man flying through the air while riding a snowboard'. How many words contain the letter 'x' in the sentence.
[EX A]:
0