In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.

Input: Consider Input: Sentence: 'a photoshopped image of a nude woman on a bed'. How many words start with the letter 'w' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'mounds of plantains are on display at market stalls'. How many words start with the letter 'm' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'black and white photograph of people walking on a sidewalk'. How many words start with the letter 'b' in the sentence.


Output: 1