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 large clock that is in the middle of the forest'. How many words start with the letter 't' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a man holding a nintendo wii game controller'. How many words start with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a picture of the feet of lacrosse players at a game'. How many words start with the letter 'a' in the sentence.
[EX A]:
3