Participants, events and states
Roles of participants
What the sentence is about
What is the statement about?
topic
subject
의미
The participant or idea that the sentence is mainly about, even if it is not actively doing anything.
알아보는 방법
Ask what the sentence is making a statement about.
Visual guide
ABOUT frame:
[This book]
↓ comment about it
[is expensive]
Topic/theme = what
statement is about
모국어에서는
한국어
Korean strongly marks the sentence topic with 은/는, which is not the same as the grammatical subject.
이 책은 재미있어요.