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: 'an officer sits on a brown horse on a city street'. How many words start with the letter 'o' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'there are people in chairs watching a projection screen'. How many words start with the letter 't' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'an old vehicle for transporting people being displayed'. How many words start with the letter 'p' in the sentence.

SOLUTION:
1