Case is related to Mental. Mental is related to Dream. Dream is related to Thinking. 
Traffic is a type of Collection. Fleet is a type of Collection. Fleet is a synonym of Float. Float is a type of Artifact. 
Case <--RelatedTo--> Mental <--RelatedTo--> Dream <--RelatedTo--> Thinking 
Traffic --IsA--> Collection <--IsA-- Fleet <--Synonym--> Float --IsA--> Artifact 