What is this?
It's a power station.
What are these?
These are a quill and a bottle of ink.
What are these?
These are oil lamps.
What is this?
It's a candle wick (and a flame).
What are these?
These are windmills (wind turbines).
What kind of power is this?
It's solar power.
What is he sliding down on?
A pole.
Who are they?
They are peasants.
Who is he?
He is a lamplighter.
What is this?
It's electricity.
What is this?
It's beeswax.
What is this?
It's a flashlight. / It's a torch.