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 mirror a sink a toilet  and a blue basket'. How many words start with the letter 'a' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'person in profile and sunlight at a barred window'. How many words start with the letter 'a' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a plant inside of a bottle filled with water'. How many words start with the letter 'f' in the sentence.

SOLUTION:
1