Catch is a type of Hurt. Catch is a synonym of Contract. Contract is a synonym of Take. Be is a type of Take. 
Elderly is related to Depend. Depend is related to Rely. Reliable is derived from Rely. 
Hurt <--IsA-- Catch <--Synonym--> Contract <--Synonym--> Take <--IsA-- Be 
Elderly <--RelatedTo--> Depend <--RelatedTo--> Rely <--DerivedFrom-- Reliable 