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 blue brick building with a man leaning on it'. How many words start with the letter 'b' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a group of people standing around an airplane on top of a field'. How many words start with the letter 'a' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'there is an airplane on the runway in the distance'. How many words start with the letter 't' in the sentence.

SOLUTION:
3