Process is related to Liver. Liver is a type of Organ. 
Passage is a synonym of Channel. Sound is a type of Channel. Sound is related to Phenomenon. Phenomenon is a synonym of Event. 
Process <--RelatedTo--> Liver --IsA--> Organ 
Passage <--Synonym--> Channel <--IsA-- Sound <--RelatedTo--> Phenomenon <--Synonym--> Event 