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 man sitting in a living room next to other people'. How many words start with the letter 'r' in the sentence.
answer:
1


question:
Sentence: 'a dog on one side of a glass door and a cat on the other side'. How many words start with the letter 'a' in the sentence.
answer:
4


question:
Sentence: 'a white bull is standing still in a clearing'. How many words start with the letter 'b' in the sentence.
answer:

1