Ballot is related to Paper. Paper is related to Output. Output is related to Sound. Beat is a type of Sound. 
Straw is related to Device. Device is related to Eye. Eye is a type of Attention. Attention is related to Bell. 
Ballot <--RelatedTo--> Paper <--RelatedTo--> Output <--RelatedTo--> Sound <--IsA-- Beat 
Straw <--RelatedTo--> Device <--RelatedTo--> Eye --IsA--> Attention <--RelatedTo--> Bell 