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: 'someone flying a red kite in a crowded park'. How many words start with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man cuts into food being cooked on a grill'. How many words start with the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'an old yellow suit case and wood biscuit box'. How many words start with the letter 'c' in the sentence.
[EX A]:
1