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 and luggage carts outside of an airplane'. How many words start with the letter 'o' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a boat floating on a lake next to a shore filled with buildings'. How many words start with the letter 'n' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a tall clock tower is surrounded by leafless trees'. How many words start with the letter 'b' in the sentence.

SOLUTION:
1