Rare earth elements are essential materials for the manufacture of electronic devices.

Transition elements play an important role in chemical reactions.

By learning phonetic symbols, accurate pronunciation becomes possible.

Can you tell me the phonetic symbol of this word?

Reading clefs is difficult.

The bass clef is one of the basic elements of music.

He is an expert in semiotics, and his theories are very profound.

What does this masu symbol mean?

This text is organized using section signs.

Semiotics is the study of signs and symbols used in society and culture.