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: 'people crowd around the fence to watch skateboarders do tricks'. How many words start with the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a yellow fire hydrant is placed in the grass'. How many words start with the letter 'i' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'people walk down the street next to cars as it begins to snow'. How many words start with the letter 't' in the sentence.


Output: 3