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: 'two men holding electronic devices compete in an interactive game'. How many words start with the letter 't' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a zebra walking past a  rhino in dirt'. How many words start with the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a person standing in a room with a microwave'. How many words start with the letter 'r' in the sentence.


Output: 1