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: 'kids at a skateboard park riding skateboards and watching'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'someone flying a red kite in a crowded park'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a field with some sheep standing in the grass'. How many words start with the letter 's' in the sentence.
[A]:
3