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 close up of three older men standing near one another'. How many words start with the letter 'a' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a bed with a wooden chest of drawers on it'. How many words start with the letter 'o' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'three people laying down on pull out couch and laughing'. How many words start with the letter 'p' in the sentence.


Output: 2