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 us air force sitting on a runway near a field'. How many words start with the letter 'a' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a stop sign and a no stopping sign are on a street corner'. How many words start with the letter 's' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'a person that is talking on a phone'. How many words start with the letter 't' in the sentence.

SOLUTION:
2