Collector is related to Art. Art is related to Piece. 
Poll is a type of Top. Top is related to Upper. Upper is related to Arm. Arm is related to Stuff. 
Collector <--RelatedTo--> Art <--RelatedTo--> Piece 
Poll --IsA--> Top <--RelatedTo--> Upper <--RelatedTo--> Arm <--RelatedTo--> Stuff 