With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ariana Grande's albums have been sold.
text_B: Fabien Riggall created Future Shorts in 2003 as a platform for new filmmakers to present their work .. Riggall went on to found Future Cinema in 2005 and Secret Cinema in 2007 .. Secret Cinema. Secret Cinema. Riggall is credited with establishing immersive cinema as a format .
not_related.