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: 'three hot dogs are stuffed in buns are ready to serve'. How many words start with the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man on a beach throwing a frisbee while two people walking the water'. How many words start with the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'some kids standing around during a little league game'. How many words start with the letter 's' in the sentence.


Output: 2