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 giraffe and two small hogs stand in an enclosure'. How many words start with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'decorative objects on a counter in front of a framed picture'. How many words start with the letter 'o' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a baseball game at a baseball field with a large audience'. How many words start with the letter 'a' in the sentence.


Output: 5