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 woman is on the court playing a game of tennis'. How many words start with the letter 'i' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a baseball player gets ready to run to first base'. How many words start with the letter 't' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a bmx motorcycle rider doing a jump over a hill'. How many words start with the letter 'a' in the sentence.
[EX A]:
3