With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kevin Tancharoen directed Glee: The 3D Concert Movie.
text_B: Death Tunnel is a 2005 horror movie filmed at the Waverly Hills Sanatorium .. horror movie. horror movie. Waverly Hills Sanatorium. Waverly Hills Sanatorium. It stars Steffany Huckaby , Annie Burgstede , Kristin Novak , and Jason Lasater .. Steffany Huckaby. Steffany Huckaby. Annie Burgstede. Annie Burgstede. Kristin Novak. Kristin Novak
not_related.