TASK DEFINITION: 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.
PROBLEM: Sentence: 'a baseball player swinging a bat while a catcher is behind him with his mitt out'. How many words start with the letter 'w' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'car pass threw a green light in the day light'. How many words start with the letter 'd' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a woman riding on a longboard down a hill'. How many words start with the letter 'a' in the sentence.

SOLUTION:
3