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 young man in a suit looks down and adjusts his tie'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'woman standing on the beach with a large sailboat behind her'. How many words start with the letter 's' in the sentence.
2

Sentence: 'a bench is built on a wooden floor pier'. How many words start with the letter 'i' in the sentence.

1