Struggle is related to Fight. Fight is related to Activity. Activity is a type of Capability. Capability is derived from Capable. 
Distinct is related to Bell. Bell is related to Liberty. Liberty is etymologically related to Liberal. 
Struggle <--RelatedTo--> Fight <--RelatedTo--> Activity --IsA--> Capability --DerivedFrom--> Capable 
Distinct <--RelatedTo--> Bell <--RelatedTo--> Liberty --EtymologicallyRelatedTo--> Liberal 