Dr. Ellie Sattler: [after entering the maintenance shed] Mr Arnold? Mr Arnold? John, I'm in.
John Hammond: [over Ellie's radio] Great. Now, ahead of you, is a metal staircase. Go down it.
Dr. Ellie Sattler: OK, I'm going down.
John Hammond: After 20 or 30 feet, you come to a T-junction. Take a left.
Dr. Ian Malcolm: Just have her follow these cables...
John Hammond: I understand how to read a schematic.