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.

[Q]: Sentence: 'a couple of giraffes that are walking around'. How many words start with the letter 'c' in the sentence.
[A]: 1


[Q]: Sentence: 'a young girl wearing a pink tie and glasses'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a train moving past some buildings near a station'. How many words start with the letter 'a' in the sentence.
[A]:
2