The task of processing argument structure encapsulates four distinct subtasks (our work focuses on subtasks 2 and 3): (1) Given a sequence of tokens that represents an entire argumentative text, determine the token subsequences that constitute non-intersecting ACs; (2) Given an AC, determine the type of AC (claim, premise, etc.); (3) Given a set/list of ACs, determine which ACs have directed links that encapsulate overall argument structure; (4) Given two linked ACs, determine whether the link is a supporting or attacking relation. This can be labeled as a 'micro' approach to argument mining<cite> (Stab and Gurevych, 2016)</cite> .