you are likely to find Pad in/at/on Office. Panel is a type of Pad. 
you are likely to find Hallway in/at/on Building. Hallway is related to Narrow. Narrow is the opposite of Broad. 
Office <--AtLocation-- Pad <--IsA-- Panel 
Building <--AtLocation-- Hallway <--RelatedTo--> Narrow <--Antonym--> Broad 