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: 'there is a bird standing on a rocky shore'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a cake in the shape of a nurses hat written with the words congratulations danielle'. How many words start with the letter 'n' in the sentence.
[A]: 1


[Q]: Sentence: 'a red train on a track near a covered area'. How many words start with the letter 'a' in the sentence.
[A]:
4