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

[EX Q]: Sentence: 'several men standing up in a large room holding wii controllers'. How many words contain the letter 'h' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a soldier holds something for a young bear'. How many words contain the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a surfer falling off his surf board at the top of a wave'. How many words contain the letter 's' in the sentence.
[EX A]:
3