Assertion: protagonist's part | /r/HasProperty | chief actor
Facets:
Source sentences:
text: A protagonist (from Ancient Greek πρωταγωνιστής, prōtagōnistḗs, meaning 'one who plays the first part, chief actor')  is the main character of a story.
text: The word "protagonist" comes from the Greek word protagonistes, meaning "one who plays the first part, chief actor.