Angle is a synonym of Opinion. Guess is a type of Opinion. Guess is the opposite of Answer. 
Passage is a synonym of Transition. Transition is a type of Switch. Switch is a synonym of Throw. 
Angle <--Synonym--> Opinion <--IsA-- Guess <--Antonym--> Answer 
Passage <--Synonym--> Transition --IsA--> Switch <--Synonym--> Throw 