I’m going to go out on a limb here and assume that you’re making this statement because it feels like they should have some intellectual property rights in this case. Independently of whether that feeling corresponds to legal reality (the original question) I would also encourage you to question the source of this feeling. I believe it is rooted in an ideology where information is restricted as property by default. This is a dangerous ideology that constantly threatens to encroach on intellectual freedom e.g. software patents, gene patents. We have a wonderful tradition in the US that information is free by default. It has been much eroded by this ideology but I believe freedom is still legally the default unless the information falls under the criteria of trademark, copyright or patent. I think it’s important to recognize how this ideology of non-freedom has perniciously warped people’s default expectation around information sharing.