With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 2017, Harry Styles had his first acting role.
text_B: Claus Grimm -LRB- born November 22 , 1940 -RRB- is a German art historian and from its founding in 1983 until 2007 he was director of the Bavarian historical institute Haus der Bayerischen Geschichte in Augsburg .. art historian. art history. Haus der Bayerischen Geschichte. Haus der Bayerischen Geschichte. Augsburg. Augsburg. He is considered an authority on Frans Hals and wrote a catalog raisonne in 1989 .. Frans Hals. Frans Hals. catalog raisonne. catalog raisonne
not_related.