Stumble entails/necessarily involves Walk. Walk is the opposite of Sit. Sit is a synonym of Welcome. 
Date is related to Number. Number is related to Concept. Division is a type of Concept. Division is related to State. 
Stumble --Entails--> Walk <--Antonym--> Sit <--Synonym--> Welcome 
Date <--RelatedTo--> Number <--RelatedTo--> Concept <--IsA-- Division <--RelatedTo--> State 