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: 'birds are standing in a row on a wooden railing'. How many words start with the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a group of children and women in snow gear next to parking lot full of cars'. How many words start with the letter 'p' in the sentence.


Output: 1