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: 'old junked blue truck in a field between two dead trees'. How many words start with the letter 't' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'dog playing frisbee on the beach with ocean in background'. How many words start with the letter 'o' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a man and a woman with laptops while sitting on a couch'. How many words start with the letter 'w' in the sentence.


Output: 3