With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The phalanx may be deployed for killing.
text_B: Juergen Teller -LRB- born January 28 , 1964 -RRB- is a German artist and fine-art and fashion photographer .. German. German people. fashion photographer. Fashion photography. fine-art. Fine-art photography
not_related.