Assertion: railway's line | /r/HasProperty | shenzhen metro
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Source sentences:
text: Whereas overhead-wire systems can operate at 25 kV or more, using alternating current (AC), the smaller clearance around a live rail imposes a maximum of about 1200 V, with some systems using 1500 V (Line 4, Guangzhou Metro, Line 5, Guangzhou Metro, Line 3, Shenzhen Metro), and direct current (DC) is