With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: It is an essential electrolyte located in all body fluids responsible for maintaining acid/base balance, transmitting nerve impulses and regulating fluid in and out of cells.
text_B: It is an essential electrolyte located in all body fluids responsible for maintaining acid / base balance, transmitting nerve impulses.
entailment.