you are likely to find Cat in/at/on Charge. Charge is related to Positive. Positive is the opposite of Uncertain. 
Sit is the opposite of Talk. Talk is a synonym of Discussion. Discussion is related to Committee. 
Cat --AtLocation--> Charge <--RelatedTo--> Positive <--Antonym--> Uncertain 
Sit <--Antonym--> Talk <--Synonym--> Discussion <--RelatedTo--> Committee 