I think Syriza and Podemos are very, very different from Sinn Féin in many ways, and so I wouldn't put all three together. I would say that Syriza and Podemos are movements which have come out of mass struggles. In the case of Podemos, directly out of tariqaliextremehuge mass movements in Spain, which started with the occupation of the square. In Greece, as a response to what the EU was doing there, punishing it endlessly, for the sins of its ruling elite.