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.

[EX Q]: Sentence: 'a guy a skateboard jumping in the air'. How many words start with the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a picture of a mirror on a bike'. How many words start with the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a close up of a plate of food with strawberries'. How many words start with the letter 'w' in the sentence.
[EX A]:
1

