Set is related to Ready. Ready is related to State. State is related to Lost. Lost is related to Sock. 
Ceiling can Metaphor. Ceiling is a synonym of Roof. 
Set <--RelatedTo--> Ready <--RelatedTo--> State <--RelatedTo--> Lost <--RelatedTo--> Sock 
Metaphor <--CapableOf-- Ceiling <--Synonym--> Roof 