you are likely to find Ceiling in/at/on Classroom. Classroom is related to Test. 
Peanut is a type of Nut. Nut is a type of Block. Block is related to Shade. Shade is a different concept from Bright. 
Ceiling --AtLocation--> Classroom <--RelatedTo--> Test 
Peanut --IsA--> Nut --IsA--> Block <--RelatedTo--> Shade <--DistinctFrom--> Bright 