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: 'green plants growing in a garden on the ground'. How many words start with the letter 'g' in the sentence.
[A]: 4


[Q]: Sentence: 'a man holding a nintendo wii game controller'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'shirtless male surfer riding a board at the peak of a wave'. How many words start with the letter 'p' in the sentence.
[A]:
1