Sock is related to Inside. 
you are likely to find Computer in/at/on Car. you are likely to find Computer in/at/on Demonstration. Demonstration is a type of Protest. Protest is the opposite of Concede. 
Sock <--RelatedTo--> Inside 
Car <--AtLocation-- Computer --AtLocation--> Demonstration --IsA--> Protest <--Antonym--> Concede 