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 passenger train that is passing under some blue bars'. How many words start with the letter 'u' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'the passengers are going up the step in to the plane'. How many words start with the letter 't' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a baseball player ready to hit a pitched ball'. How many words start with the letter 'a' in the sentence.

SOLUTION:
2