With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Marvel Cinematic Universe's first film was 2008's Iron Man starring Robert Downey Jr.
text_B: Ophrys × arachnitiformis , the False Spider Orchid , is an orchid native to Europe .. Ophrys. Ophrys. orchid. orchid. Europe. Europe. It is apparently a hybrid resulting from a cross between O. fuciflora × O. sphegodes , but has become established in the wild in Britain , France -LRB- including Corsica -RRB- , Germany , parts of Italy -LRB- Liguria , Tuscany , Lazio , Apulia , Sicily , Sardinia -RRB- , Austria , Switzerland , Hungary , and the former Yugoslavia .. O. fuciflora. Ophrys fuciflora. O. sphegodes. Ophrys sphegodes. Britain. Great Britain. France. France. Corsica. Corsica. Germany. Germany. Italy. Italy. Liguria. Liguria. Tuscany. Tuscany. Lazio. Lazio. Apulia. Apulia. Sicily. Sicily. Sardinia. Sardinia. Austria. Austria. Switzerland. Switzerland. Hungary. Hungary. Yugoslavia. Yugoslavia
not_related.