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 blue brick building with a man leaning on it'. How many words start with the letter 'b' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'there is a chocolate muffin on the plate'. How many words start with the letter 'i' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a motorcycle is shown sitting in a parking lot'. How many words start with the letter 'p' in the sentence.
[EX A]:
1