Bennett's laws of quantum information are: 1 qubit 1 bit (classical), 1 qubit 1 ebit (entanglement bit), 1 ebit + 1 qubit 2 bits (i.e. superdense coding), 1 ebit + 2 bits 1 qubit (i.e. quantum teleportation),
where indicates "can do the job of".
These principles were formulated around 1993 by Charles H. Bennett.
References Quantum Mechanics: The Physics of the Microscopic World, Benjamin Schumacher, The Teaching Company, lecture 21