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 girl who is wearing a back pack with a teddy bear in it'. How many words start with the letter 'w' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a man on a bike and a banana in the pocket'. How many words start with the letter 'a' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'small bathroom with square toilet and small stand in shower'. How many words start with the letter 's' in the sentence.

SOLUTION:
5