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: 'a group of people sitting at a long table in  a wine cellar'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'two men on motorcycles and wearing helmets'. How many words start with the letter 'w' in the sentence.
1

Sentence: 'a man is sitting in front of a desk with a coffee mug'. How many words start with the letter 's' in the sentence.

1