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 baseball player holding a glove in one hand and ball in the other'. How many words start with the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a man holding up a smart phone with both hands'. How many words start with the letter 'm' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man acting laying down next to a bear statue pretending to scream'. How many words start with the letter 'a' in the sentence.


Output: 3