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.

Q: Sentence: 'dude in shades sits and eats a hotdog'. How many words start with the letter 's' in the sentence.

A: 2
****
Q: Sentence: 'a man wearing a straw hat and a black shirt'. How many words start with the letter 'a' in the sentence.

A: 4
****
Q: Sentence: 'the cat lies on a step outside a doorway'. How many words start with the letter 'o' in the sentence.

A:
2
****