Difference between Yocto and OpenEmbedded (OE)?

Even after reading the details from the Yocto Project website. To my understanding, something makes Yocto and OpenEmbedded different from each other. Both frameworks are made to build Linux distributions. So if I say Yocto and OpenEmbedded (OE) are the same then it's not correct because Yocto uses openembedded but it in reality is not OE. I wonder if there is any difference between both of them. I appreciate it if anyone help me clear confusion.