Detailed Instructions: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Do [ The preliminary study of the origin characters of snore in simple snorers ]?
Answer: The palatal fluttering is the main source of snoring sounds for most simple snorers, then followed by vibration of palatal and pharyngeal lateral wall together. The site of collapse in pharyngeal cavity is consistent with the main site of vibration.
A:
yes