Table 1.

Top-level HED 2.0 classes and implied relationships.

Classes	Relation (→)	Classes
Item, Participant, Event	isDescribedBy	Attribute
Attribute	describes	Item, Participant, Event
Action	isPerformedBy	Item, Participant
Item, Participant	performs	Action
Event	isDescribedBy	Paradigm
Paradigm	describes	Event
Sensory presentation	presents	Item
Item	isPresentedBy	Sensory presentation