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 picture of a mirror on a bike'. How many words start with the letter 'o' in the sentence.
2

Sentence: 'a white dog laying in an open suitcase'. How many words start with the letter 'i' in the sentence.
1

Sentence: 'a large amount of food sitting on a table banquet style'. How many words start with the letter 'b' in the sentence.

1