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.

[EX Q]: Sentence: 'a bed with a wooden chest of drawers on it'. How many words start with the letter 'o' in the sentence.
[EX A]: 2

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

[EX Q]: Sentence: 'a group of four tennis players posing for a picture'. How many words start with the letter 'p' in the sentence.
[EX A]:
3