Meaningful is related to Significant. Significant is a synonym of Crucial. Crucial is the opposite of Light. Light is a type of Condition. 
Courage is related to Brave. Brave is a type of Film. Classic is a type of Film. 
Meaningful <--RelatedTo--> Significant <--Synonym--> Crucial <--Antonym--> Light --IsA--> Condition 
Courage <--RelatedTo--> Brave --IsA--> Film <--IsA-- Classic 