Passage: In the assembly that convened on 10 November in the Circus Busch, the majority stood on the side of the SPD: almost all Soldiers' Councils and a large part of the workers representatives. They repeated the demand for the "Unity of the Working Class" that had been put forward by the revolutionaries the previous day and now used this motto in order to push through Ebert's line. As planned, three members of each socialist party were elected into the "Council of People's Representatives": from the USPD, their chairman Hugo Haase, the deputy Wilhelm Dittmann and Emil Barth for the Revolutionary Stewards; from the SPD Ebert, Scheidemann and the Magdeburg deputy Otto Landsberg.

Question: What motto was used by the socialist party to break Ebert's line?
Unity of the Working Class