Bear is a synonym of Assume. Assume is a type of Take. Take is a synonym of Undergo. Undergo is a synonym of Pass. 
Nurse is the opposite of Physician. Physician is related to Person. you are likely to find Person in/at/on Conference. Seminar is a type of Conference. 
Bear <--Synonym--> Assume --IsA--> Take <--Synonym--> Undergo <--Synonym--> Pass 
Nurse <--Antonym--> Physician <--RelatedTo--> Person --AtLocation--> Conference <--IsA-- Seminar 