Finally, prior research has explored predicting different argumentative relationship labels between pairs of argument components, e.g., attachment (Peldszus and Stede, 2015a) , support vs. non-support (Biran and Rambow, 2011; Cabrio and Villata, 2012;<cite> Stab and Gurevych, 2014b)</cite> , {implicit, explicit}×{support, attack} (Boltužić andŠnajder, 2014) , verifiability of support (Park and Cardie, 2014) . Our experiments use two such argumentative relation classification tasks (Support vs. Non-support, Support vs. Attack) to evaluate the effectiveness of our proposed features.