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 golfer hitting a golf ball at a hole on the green'. How many words start with the letter 'g' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'ostrich in enclosed area next to a giraffe'. How many words start with the letter 't' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a boy and his father are flying a kite in the park'. How many words start with the letter 'a' in the sentence.


Output: 4