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

Input: Consider Input: Sentence: 'man holding remote control for video game system'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a stuffed animal yellow giraffe placed next to a sandwich as if the giraffe is eating it with a large body of water and grass areas in the background'. How many words contain the letter 'g' in the sentence.

Output: 6


Input: Consider Input: Sentence: 'this giraffe is either attacking an oncoming person or going for food'. How many words contain the letter 's' in the sentence.


Output: 3