Employ is related to Use. Abuse is a type of Use. Abuse is a type of Attack. 
Dark is related to Condition. Improvement is a type of Condition. Improvement is related to Make. 
Employ <--RelatedTo--> Use <--IsA-- Abuse --IsA--> Attack 
Dark <--RelatedTo--> Condition <--IsA-- Improvement <--RelatedTo--> Make 