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 white kitchen has green and lime accents'. How many words start with the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'the man is laying in bed taking his temperature'. How many words start with the letter 'i' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'many people going up some stairs with umbrellas'. How many words start with the letter 's' in the sentence.


Output: 2