Communication is related to Wire. Wire is related to Equipment. Equipment is related to Board. Board is related to Brown. 
Drunk is related to Party. Balloon can be used for Party. Envelope is part of Balloon. 
Communication <--RelatedTo--> Wire <--RelatedTo--> Equipment <--RelatedTo--> Board <--RelatedTo--> Brown 
Drunk <--RelatedTo--> Party <--UsedFor-- Balloon <--PartOf-- Envelope 