Appointment is a type of Occupation. Occupation is related to Student. Student is the opposite of Professor. 
you are likely to find Album in/at/on Closet. Kid is a type of Album. Kid is related to Trouble. Trouble is a type of Pregnancy. 
Appointment --IsA--> Occupation <--RelatedTo--> Student <--Antonym--> Professor 
Closet <--AtLocation-- Album <--IsA-- Kid <--RelatedTo--> Trouble --IsA--> Pregnancy 