instruction:
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.
question:
Sentence: 'a boat floating on a lake next to a shore filled with buildings'. How many words start with the letter 'n' in the sentence.
answer:
1


question:
Sentence: 'a young boy hits a baseball during a game'. How many words start with the letter 'd' in the sentence.
answer:
1


question:
Sentence: 'a man standing behind a red frisbee while a group of people watch'. How many words start with the letter 'a' in the sentence.
answer:

3