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 large jet liner sitting on top of an airport runway'. How many words start with the letter 'a' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'man in winter clothes riding a snowboard on a gentle slope'. How many words start with the letter 'g' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a small green bathroom with a sink and a toilet'. How many words start with the letter 'a' in the sentence.

SOLUTION:
4