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: 'red bananas and sliced apples sit on a carving board'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a person is kite surfing on calm water while it is cloudy'. How many words start with the letter 'k' in the sentence.
1

Sentence: 'a red and white bus drives down the street'. How many words start with the letter 'd' in the sentence.

2