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 statue sitting on top of a bench in the snow'. How many words start with the letter 's' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'many sheep gather on a truck and in a field eating hay'. How many words start with the letter 'h' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'the airplane is parked on the runway of the airport'. How many words start with the letter 'a' in the sentence.


Output: 2