With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steven Soderbergh directed Erin Brockovich and was acclaimed.
text_B: The men 's team free rifle was a shooting sports event held as part of the Shooting at the 1920 Summer Olympics programme .. shooting sports. shooting sports. Shooting at the 1920 Summer Olympics. Shooting at the 1920 Summer Olympics. It was the fourth appearance of the event .. The competition was held on 31 July 1920 .. 70 shooters from 14 nations competed .
not_related.