Advocate is a synonym of Recommend. Recommend is a synonym of Urge. Urge is a synonym of Press. 
Animal is a type of Organism. Pig is a type of Animal. Pig is related to Cop. Cop is related to Policeman. 
Advocate <--Synonym--> Recommend <--Synonym--> Urge <--Synonym--> Press 
Organism <--IsA-- Animal <--IsA-- Pig <--RelatedTo--> Cop <--RelatedTo--> Policeman 