Tendency is a synonym of Aim. Aim is a synonym of Calculate. Calculate is a synonym of Direct. 
Sexy is a type of Book. you are likely to find Book in/at/on Floor. Floor is a different concept from Ceiling. Ceiling is part of Hallway. 
Tendency <--Synonym--> Aim <--Synonym--> Calculate <--Synonym--> Direct 
Sexy --IsA--> Book --AtLocation--> Floor <--DistinctFrom--> Ceiling --PartOf--> Hallway 