The day the Emperor passed away, the whole country was enveloped in sadness.

Yesterday, our emperor passed away.

Please take the medicine prescribed by the doctor.

Polish notation is one of the methods to express arithmetic expressions.

Prefix notation is a notation where the operator comes before the operands.

Postfix notation is one method of expressing calculations.

We will use boric acid in this experiment.

He measured the wavelength of light using interferometry.

This law is a sieve law, full of loopholes.

He really looked like a wizard.