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 giraffe is standing behind a stone wall'. How many words start with the letter 'a' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'four boats on the sand on the beach'. How many words start with the letter 'o' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a gentleman wearing a hat and tie while sitting'. How many words start with the letter 'w' in the sentence.

SOLUTION:
2