Person is related to Participant. Participant is a synonym of Actor. Plant is a type of Actor. Plant is related to Energy. 
Light is a type of Insight. Insight is related to Deep. Deep is a synonym of Fast. Fast is related to River. 
Person <--RelatedTo--> Participant <--Synonym--> Actor <--IsA-- Plant <--RelatedTo--> Energy 
Light --IsA--> Insight <--RelatedTo--> Deep <--Synonym--> Fast <--RelatedTo--> River 