Public is related to Protest. Protest is related to Gathering. Gathering is a synonym of Meeting. 
Fish is related to Protein. Protein is related to Egg. Egg is related to Fist. 
Public <--RelatedTo--> Protest <--RelatedTo--> Gathering <--Synonym--> Meeting 
Fish <--RelatedTo--> Protein <--RelatedTo--> Egg <--RelatedTo--> Fist 