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 boy wearing blue has a skateboard in the air near a black railing'. How many words start with the letter 'a' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'ostrich in enclosed area next to a giraffe'. How many words start with the letter 't' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a little boy showing a young girl how to balance herself on a skate board'. How many words start with the letter 'b' in the sentence.

SOLUTION:
3