Favorable is a synonym of Bright. Bright is a different concept from Dark. Dark is related to Corner. 
you are likely to find Dirt in/at/on Tree. you are likely to find Shade in/at/on Tree. Shade is related to Maker. 
Favorable <--Synonym--> Bright <--DistinctFrom--> Dark <--RelatedTo--> Corner 
Dirt --AtLocation--> Tree <--AtLocation-- Shade <--RelatedTo--> Maker 