toProperties method
Converts features to a property map for Concept.
Implementation
Map<String, dynamic> toProperties() => {
'entities': entities,
'actions': actions,
'attributes': attributes,
'spatial': spatialRelations,
'temporal': temporalMarkers,
'emotional': emotionalCues,
'causal': causalCues,
'negated': negations.isNotEmpty,
'is_question': questions,
};