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

Input: Consider Input: Sentence: 'some brown and white goats and a man on some grass'. How many words contain the letter 'o' in the sentence.

Output: 5


Input: Consider Input: Sentence: 'a man buttering toast in his kitchen on the counter'. How many words contain the letter 'c' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a man taking a bite out of a doughnut'. How many words contain the letter 'd' in the sentence.


Output: 1