What about the license/copyright of these? They do not include a license file and the Welcome.txt file included with Lexis only says: " Please note we don't r

What about the license/copyright of these? They do not include a license file and the Welcome.txt file included with Lexis only says: " Please note we don't reserved the copy rights for used images. " No license = undistributable or is that supposed to mean public domain?