sentences:  In May 2013, the defective car still remained, abandoned, at Independencia station.After the transfer, the extension and expansion of the line was considered but it was not carried out.The proposal made by State-owned company "Subterráneos de Buenos Aires" (SBASE) consisted of a series of improvements to the service that included the extension of the line to Retiro complex (connecting it with the three railway terminals and the homonymous Underground stations).