Crush is related to Teenage. Teenager is derived from Teenage. Teenager is a synonym of Adolescent. Adolescent is a synonym of Teen. 
Drop is a type of Remove. Drop is related to Voluntary. Voluntary is related to Conscious. 
Crush <--RelatedTo--> Teenage <--DerivedFrom-- Teenager <--Synonym--> Adolescent <--Synonym--> Teen 
Remove <--IsA-- Drop <--RelatedTo--> Voluntary <--RelatedTo--> Conscious 