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: 'people crowd around the fence to watch skateboarders do tricks'. How many words start with the letter 'p' in the sentence.
[A]: 1


[Q]: Sentence: 'a boy wearing blue has a skateboard in the air near a black railing'. How many words start with the letter 'a' in the sentence.
[A]: 4


[Q]: Sentence: 'a woman falling off her surfboard while wearing a wetsuit'. How many words start with the letter 'a' in the sentence.
[A]:
2