Echo is a type of Award. Echo is a type of Reply. Reply is the opposite of Ignore. Ignore is the opposite of Watch. 
Scientist is a type of Researcher. Scientist is a type of Magazine. Blast is a type of Magazine. 
Award <--IsA-- Echo --IsA--> Reply <--Antonym--> Ignore <--Antonym--> Watch 
Researcher <--IsA-- Scientist --IsA--> Magazine <--IsA-- Blast 