With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Maggie Gyllenhaal acts.
text_B: In electrical engineering utilization categories are defined by IEC standards and indicate the type of electrical load and duty cycle of the loads to ease selection of contactors and relays .. electrical engineering. electrical engineering. IEC standards. IEC standards. electrical load. electrical load. duty cycle. duty cycle. contactors. contactors. relays. relays
not_related.