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: 'the man is standing on a surfboard with a paddle'. How many words start with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a bus stops in order to pick up passengers'. How many words start with the letter 'p' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a bowl full of broccoli with spoons on a table'. How many words start with the letter 'a' in the sentence.


Output: 2