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 large group of motorcyclists waiting in the street'. How many words start with the letter 'g' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a counter holds an assortment of fruits and vegetables'. How many words start with the letter 'v' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a skater walks with his board near a spray painted half pipe'. How many words start with the letter 'w' in the sentence.


Output: 2