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 man skiing down a mountain on a sunny day'. How many words start with the letter 'm' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a bed sitting in the corner of the room next to a wooden table'. How many words start with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a side angle of a surfer riding a nice wave'. How many words start with the letter 'a' in the sentence.
[EX A]:
4