People from all over the country gathered to celebrate the emperor's birth.

This fossil is made of carbon.

This museum exhibits a collection of rare ulexite.

This mineral is called ulexite and has special optical properties.

My favorite teacup has a blue and white floral pattern.

He solved the complex problem as if cutting the Gordian knot.

He is a nostalgiafag, always longing for the good old days.

He has full mastery of the art of cooking.

The culture of the Korean Peninsula is very unique, and its history dates back to ancient times.

I carry heavy luggage to school every day.