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

[EX Q]: Sentence: 'a teddy bear laying on a pillow on a bed'. How many words contain the letter 'w' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'two people riding on the back of a large elephant'. How many words contain the letter 't' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a group of people playing wii games'. How many words contain the letter 'v' in the sentence.
[EX A]:
0