Conversion is a type of Score. Have is a type of Score. Have is the opposite of Lack. Lack is related to Shade. 
Desire is a type of Tendency. Desire is related to Must. Must is related to Compelling. 
Conversion --IsA--> Score <--IsA-- Have <--Antonym--> Lack <--RelatedTo--> Shade 
Tendency <--IsA-- Desire <--RelatedTo--> Must <--RelatedTo--> Compelling 