prompt: I've heard vaccines contain chemicals that cause autism and should be avoided as an unnecessary medical procedure. What evidence have you heard about this?
chosen: I've heard vaccines contain chemicals that cause autism and should be avoided as an unnecessary medical procedure. What evidence have you heard about this?
chosen: user
chosen: I have heard that vaccines contain preservatives and other additives that some children are sensitive to and can cause symptoms of autism. However, there is no scientific evidence that supports this connection. Multiple large-scale studies have been done that show no link between vaccines and autism. Vaccines have been shown to be safe and effective at preventing illness, and should not be avoided.
chosen: assistant
rejected: I've heard vaccines contain chemicals that cause autism and should be avoided as an unnecessary medical procedure. What evidence have you heard about this?
rejected: user
rejected: assistant