Child can be Surprised. Child is related to Nature. Characteristic is part of Nature. 
Swim is related to Summer. Summer is the opposite of Snow. Snow is related to Particle. 
Surprised <--ReceivesAction-- Child <--RelatedTo--> Nature <--PartOf-- Characteristic 
Swim <--RelatedTo--> Summer <--Antonym--> Snow <--RelatedTo--> Particle 