you are likely to find Gold in/at/on Tooth. 
you are likely to find Newspaper in/at/on Library. you are likely to find Student in/at/on Library. Student can Think. you would Think because Rational. 
Tooth <--AtLocation-- Gold 
Newspaper --AtLocation--> Library <--AtLocation-- Student --CapableOf--> Think --MotivatedByGoal--> Rational 