With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Natalie Portman was involved with the 61st Annual Cannes Film Fesival when she was 20 years old.
text_B: Santiago de Challas District is one of thirteen districts of the province Pataz in Peru .. District. Districts of Peru. Pataz. Pataz Province. Challas. Challas. districts. Districts of Peru. Peru. Peru
not_related.