This room is very cool because the air conditioner is working.

This problem should be considered on a case-by-case basis.

In Roman mythology, Pluto is considered the god of the underworld.

Mercury is the god of commerce, travel, thieves, and merchants in Roman mythology, equivalent to Hermes in Greek mythology.

This thermometer uses mercury.

Psyche is a goddess in Greek mythology.

She was scared of the stalker.

He was stalking her.

His talk was like a tautology, repeating the same thing over and over again.

The beaver is gnawing on a tree by the river.