Character Nodes: The basic units in the diagram, usually represented by circles, squares, or other shaped frames, labeled with the character's name or identity.
Relationship Lines: Lines connecting different character nodes, used to represent the relationships between characters. Lines can have different styles (such as solid, dashed, arrowed lines, etc.) and colors to distinguish different types of relationships.
Relationship Descriptions: Text added on or beside the relationship lines to describe the specific relationships between characters, such as kinship, friendship, cooperation, etc.