With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Modern lawn tennis did not evolve from real tennis.
text_B: In electronics , an electronic switch is an electronic component or device that can switch an electrical circuit , interrupting the current or diverting it from one conductor to another .. electronics. electronics. electronic component. electronic component. switch. switch. electrical circuit. electrical circuit. current. Electric current. Typically , electronic switches use solid state devices such as transistors , though vacuum tubes can be used as well in high voltage applications .. solid state. solid state ( electronics ). transistors. transistors. vacuum tubes. vacuum tubes. high voltage. high voltage. Category  : Electronic circuits
not_related.