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 man in red and black jacket snowboarding on slope'. How many words start with the letter 'o' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a man pulls a rolling suitcase and is wearing a suit'. How many words start with the letter 'a' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a lot of donuts that are sitting in a box'. How many words start with the letter 'a' in the sentence.

SOLUTION:
3