you are likely to find Speaker in/at/on Demonstration. Demonstration is a synonym of Show. Show is the opposite of Cover. Cover is related to Outer. 
Immediate is related to Family. Family is related to Pet. 
Speaker --AtLocation--> Demonstration <--Synonym--> Show <--Antonym--> Cover <--RelatedTo--> Outer 
Immediate <--RelatedTo--> Family <--RelatedTo--> Pet 