Plunge is related to Swimming. one thing you do when you Swimming is Float. Float is related to Pool. Pill is etymologically related to Pool. 
Meat is the opposite of Produce. Produce is related to Supermarket. you are likely to find Cart in/at/on Supermarket. 
Plunge <--RelatedTo--> Swimming --HasSubevent--> Float <--RelatedTo--> Pool <--EtymologicallyRelatedTo-- Pill 
Meat <--Antonym--> Produce <--RelatedTo--> Supermarket <--AtLocation-- Cart 