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 statue sitting on top of a bench in the snow'. How many words start with the letter 's' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a young woman is posing on a wooden table'. How many words start with the letter 'w' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a nintendo wii box on a seat in a car'. How many words start with the letter 's' in the sentence.


Output: 1