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 silver and blue amtrak train sitting below tall buildings'. How many words start with the letter 'b' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a colorful kite flies over top a house'. How many words start with the letter 'f' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a desk with several computers and monitors on it'. How many words start with the letter 's' in the sentence.

SOLUTION:
1