  For the 3-qubit UPB state, i.e., the bound entangled state constructed from
an Unextendable Product Basis of Bennett et al. (Phys. Rev. Lett. 82:5385,
1999), we provide a set of violations of Local Hidden Variable (LHV) models
based on the particular type of reflection symmetry encoded in this state. The
explicit nonlocal unitary operation needed to prepare the state from its
reflected separable mixture of pure states is given, as well as a nonlocal
one-parameter orbit of states with Positive Partial Transpositions (PPT) which
swaps the entanglement between a state and its reflection twice during a
period.
