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 small bathroom has a mirror vanity and toilet'. How many words start with the letter 'b' in the sentence.
1

Sentence: 'a lone zebra standing in the middle of a field'. How many words start with the letter 'i' in the sentence.
1

Sentence: 'a view of a beach and the ocean with some people walking along the shore'. How many words start with the letter 's' in the sentence.

2