# Knowledge types

- [Answer to a question](/contents/knowledge/knowledge-types/answer-to-a-question.md)
- [Complementary answer](/contents/knowledge/knowledge-types/complementary-answer.md)
- [Predefined answer](/contents/knowledge/knowledge-types/predefined-answer.md)
- [Event-triggered knowledge](/contents/knowledge/knowledge-types/event-triggered-knowledge.md)
- [Slot filling](/contents/knowledge/knowledge-types/slot-filling.md)