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

[EX Q]: Sentence: 'an image of a man with a tennis racket in hand'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'guys in a living room playing a wii bowling game'. How many words contain the letter 'c' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a big elephant playing in a puddle of water'. How many words contain the letter 'i' in the sentence.
[EX A]:
3