Charge is related to Account. Account is a synonym of Book. Signature is part of Book. 
Camera can be used for Photograph. Magazine is part of Camera. Edge is a type of Magazine. Edge is related to Upper. 
Charge <--RelatedTo--> Account <--Synonym--> Book <--PartOf-- Signature 
Photograph <--UsedFor-- Camera <--PartOf-- Magazine <--IsA-- Edge <--RelatedTo--> Upper 