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: 'a young boy hitting a tee ball with a red bat'. How many words start with the letter 'b' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a group of people eating a meal outside'. How many words start with the letter 'g' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a elephant that is standing in the dirt'. How many words start with the letter 'd' in the sentence.
[EX A]:
1