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: 'plates of different kind of food and a group of people on a picnic table'. How many words start with the letter 't' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'the two images show a bathroom sink and a stool beside a toilet'. How many words start with the letter 'a' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a man is on the pavement on a skateboard'. How many words start with the letter 'o' in the sentence.


Output: 2