Identity is a type of Operator. Identity is related to Card. Card is related to Debt. Debt is related to Negative. 
Determine is a synonym of Fix. Fix is a type of Establish. 
Operator <--IsA-- Identity <--RelatedTo--> Card <--RelatedTo--> Debt <--RelatedTo--> Negative 
Determine <--Synonym--> Fix --IsA--> Establish 