Complex sentence: This method basically allows the wave function to have different orbitals in order to represent the molecular system in terms of different VB structures, which is easily understood in terms of Lewis structures and permits to characterize the elementary bonds.
Split into simpler sentences: This method basically allows the wave function to have different orbitals for the different VB structures, which represent the molecular system. This approach is easily understood in terms of Lewis structures and permits to characterize the elementary bonds.