tokens: We thank the referee for valuable comments that prompted improvements in the manuscript. We thank Markus Böttcher, Dominique Sluse, Tommaso Treu, and Jabran Zahid for the valuable comments on the manuscript. A.B. is supported by the Department of Energy Office of Science, NASA, and the Smithsonian Astrophysical Observatory with financial support from the NCN grant DEC-2011/01/M/ST9/01891. M.J.G. is supported by the Smithsonian Institution.
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