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: 'green plants growing in a garden on the ground'. How many words start with the letter 'g' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'several white boats are anchored at a marina'. How many words start with the letter 's' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'the plane is flying up in the sky with a few people on it'. How many words start with the letter 'i' in the sentence.

SOLUTION:
3