Undermine is a synonym of Weaken. Weaken is a synonym of Relax. you would Relax because Peace. Peace is related to Very. 
Actual is related to Fact. Fact is related to Correct. 
Undermine <--Synonym--> Weaken <--Synonym--> Relax --MotivatedByGoal--> Peace <--RelatedTo--> Very 
Actual <--RelatedTo--> Fact <--RelatedTo--> Correct 