Before revision: It's two inputs S and R can set the internal state to 1 using the combination S=1 and R=0, and can reset the internal state to 0 using the combination S=0 and R=1.
After revision: Its two inputs S and R can set the internal state to 1 using the combination S=1 and R=0, and can reset the internal state to 0 using the combination S=0 and R=1.