Threat is related to Enemy. Enemy is related to Rival. Rival is a synonym of Equal. Equal is related to Math. 
Law is related to Fraud. Fraud is related to Lie. Romance is a type of Lie. 
Threat <--RelatedTo--> Enemy <--RelatedTo--> Rival <--Synonym--> Equal <--RelatedTo--> Math 
Law <--RelatedTo--> Fraud <--RelatedTo--> Lie <--IsA-- Romance 