Command is related to Chain. Chain is related to Link. Link is related to Relation. Relation is related to Size. 
Knowledge is a synonym of Consciousness. Consciousness is a type of Experience. Witness is a type of Experience. 
Command <--RelatedTo--> Chain <--RelatedTo--> Link <--RelatedTo--> Relation <--RelatedTo--> Size 
Knowledge <--Synonym--> Consciousness --IsA--> Experience <--IsA-- Witness 