Za et al Reply.

The article offers the author's insights on the comment by E. Amselem and colleagues on experimental test of quantum contextuality in an indivisible system which misinterprets the assumption and logic of their experiment. The author says that they assumed the functioning of simple linear optical devices such as polarization beam splitters. He mentions that they assumed that half wave plates (HWP), which were set at an angle θ have tranform the polarization H, V of the incoming light field.