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: 'this grizzly bear is standing in some shallow water'. How many words start with the letter 'g' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man taking a picture of himself in a bathroom'. How many words start with the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a bedroom with wooden floors and a striped blanket on the bed'. How many words start with the letter 'a' in the sentence.


Output: 3