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: 'the man is wearing a suit and tie'. How many words start with the letter 't' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man in vest and tie holding a cellphone'. How many words start with the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'three giraffes are running across a dirt road'. How many words start with the letter 'a' in the sentence.
[EX A]:
3