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.

[Q]: Sentence: 'black and white photograph of potted plants and gardening tools'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a living room with hd tv chair and decorations'. How many words start with the letter 'r' in the sentence.
[A]: 1


[Q]: Sentence: 'a yellow and blue fire hydrant place on a side walk'. How many words start with the letter 'a' in the sentence.
[A]:
3