With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Paris is the son of Queen Hecuba.
text_B: Esca is a grape disease of mature grapevines .. It is a type of grapevine trunk disease .. grapevine trunk disease. grapevine trunk disease. The fungi Phaeoacremonium aleophilum , Phaeomoniella chlamydospora and Fomitiporia mediterranea are associated with the disease .. Phaeoacremonium aleophilum. Phaeoacremonium aleophilum. Phaeomoniella chlamydospora. Phaeomoniella chlamydospora. Fomitiporia mediterranea. Fomitiporia mediterranea
not_related.