Unemployment is the opposite of Job. Job is a synonym of Speculate. Speculate is a type of Reason. 
Road can be used for Cross. Cross is related to Red. Blood is a type of Red. 
Unemployment <--Antonym--> Job <--Synonym--> Speculate --IsA--> Reason 
Road --UsedFor--> Cross <--RelatedTo--> Red <--IsA-- Blood 