Scientist is a type of Researcher. you are likely to find Researcher in/at/on Laboratory. you are likely to find Monkey in/at/on Laboratory. Monkey is related to Funny. 
Doctor can be used for Diagnose. Doctor is related to Title. 
Scientist --IsA--> Researcher --AtLocation--> Laboratory <--AtLocation-- Monkey <--RelatedTo--> Funny 
Diagnose <--UsedFor-- Doctor <--RelatedTo--> Title 