Approve is etymologically related to Prove. Prove is related to Math. 
Bombing is a form of Bomb. Bomb is a synonym of Turkey. Breast is part of Turkey. Breast is a synonym of Heart. 
Approve --EtymologicallyRelatedTo--> Prove <--RelatedTo--> Math 
Bombing --FormOf--> Bomb <--Synonym--> Turkey <--PartOf-- Breast <--Synonym--> Heart 