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 kitchen with hard wood floors and metallic appliances'. How many words start with the letter 'm' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a young boy hits a baseball during a game'. How many words start with the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a small boy on the beach holding a surf board'. How many words start with the letter 'a' in the sentence.


Output: 2