Living can cause/lead to Interaction. Interaction is related to Call. Call is the opposite of Text. 
Present is related to Toy. Toy is related to Child. Child is related to Old. 
Living --Causes--> Interaction <--RelatedTo--> Call <--Antonym--> Text 
Present <--RelatedTo--> Toy <--RelatedTo--> Child <--RelatedTo--> Old 