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.

Ex Input:
Sentence: 'parking meter with nine minutes left and red car'. How many words start with the letter 'c' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'two uncooked pizzas sit on a wooden table'. How many words start with the letter 't' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a group of people that appear to be young posing for a picture'. How many words start with the letter 'p' in the sentence.

Ex Output:

3