Monument is related to Large. Large is the opposite of Small. Small is related to Cat. you are likely to find Cat in/at/on Laundry. 
Meaningful is derived from Meaning. Meaning is related to Peace. Peace is related to Mind. Mind is related to Consciousness. 
Monument <--RelatedTo--> Large <--Antonym--> Small <--RelatedTo--> Cat --AtLocation--> Laundry 
Meaningful --DerivedFrom--> Meaning <--RelatedTo--> Peace <--RelatedTo--> Mind <--RelatedTo--> Consciousness 