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

Input: Consider Input: Sentence: 'a bird flying over the water in the ocean shore'. How many words contain the letter 'o' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a woman working her small shared office cubicle'. How many words contain the letter 'g' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a wet dog being giving a bath by its owners'. How many words contain the letter 'w' in the sentence.


Output: 2