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The equivalent circular Einstein radius is $\\theta_{e}= 55 \\pm 3\\arcsec$ (at an estimated source redshift of $z_{s}\\sim2.5$), corresponding to $r_e\\simeq 350\\pm 20 kpc$ at the cluster redshift, nearly three times greater than that of A1689 ($r_e\\simeq 140 kpc$ for $z_{s}=2.5$). 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