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 man dressed in a suit walking with a crowd of people '. How many words start with the letter 'm' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a dog is laying down on a small couch'. How many words start with the letter 'a' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a parked car with a cat sitting on the top of the car'. How many words start with the letter 'o' in the sentence.


Output: 2