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 airplane sitting on a tarmac with work trucks close by'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a young man laying on top of a white toilet seat near a sink'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a dog that is laying down under a desk'. How many words start with the letter 'a' in the sentence.

2