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

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: 'a large brown dog with a white deflated ball in its mouth'. How many words contain the letter 'm' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'a bathroom with large brown tiles and white fixtures'. How many words contain the letter 'b' in the sentence.
Output: 2