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.

Sentence: 'while in a restaurant a young man is playing with his phone'. How many words start with the letter 'w' in the sentence.
2

Sentence: 'a guy a skateboard jumping in the air'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a woman sits at a wine tasting trying to decide which one to serve at her event'. How many words start with the letter 'a' in the sentence.

4