answer: Tiang Had shows #Person2# around the factory and answers several questions.
documents: #Person1#: Welcome to our factory. My name is Tiang Had and I'll show you around here. First we'll take a look at the workshop which produces food thermometers. Please, this way.
  #Person2#: Has all the work done by men been replaced by automatic computers?
  #Person1#: Yes, it has.
  #Person2#: Excuse me, what is this?
  #Person1#: This is a circuit board.
  #Person2#: Are the batteries in it made by your people?
  #Person1#: No, they are from other factories.
  #Person2#: What kind of battery is it?
  #Person1#: It is lithium which can be used for over three years.