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 white dog laying in an open suitcase'. How many words start with the letter 'i' in the sentence.
[A]: 1


[Q]: Sentence: 'the man is rowing his boat in the water'. How many words start with the letter 'i' in the sentence.
[A]:
2