The NOR/OR module can be patched as two NOT gates, one NOT gate and one 2- or 3-input NOR/OR gate, one 2-input NOR/OR gate and one 2- or 3-input NOR/OR gate or one 4-input NOR/OR gate.
Gate one has three inputs, the second has two. The OR out from gate one is being normalled to input 1 on gate two.