With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Josh Duhamel is in Transformers.
text_B: The Gregor GR-1 , also called the GR-1 Continental and the GR-1 Sportplane was a biplane with a tail-wheel undercarriage developed by Michael Gregor. biplane. biplane. tail-wheel undercarriage. tail-wheel undercarriage. Michael Gregor. Michael Gregor ( aircraft engineer )
not_related.