Faith is related to Practice. Practice is the opposite of Theory. Theory is related to Possible. 
Mobile is a type of Sculpture. Sculpture is related to Statue. Statue is related to Representation. 
Faith <--RelatedTo--> Practice <--Antonym--> Theory <--RelatedTo--> Possible 
Mobile --IsA--> Sculpture <--RelatedTo--> Statue <--RelatedTo--> Representation 