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: '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 msall bus going down a road with a street sign'. How many words start with the letter 'd' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a picture of a mirror on a bike'. How many words start with the letter 'o' in the sentence.

SOLUTION:
2