**Table 7:** The best-fit parameters for the extended-image model.
Model	$\theta_{\rm E}$	$\gamma$	$\theta_{\gamma}$	$\widetilde\chi^{2}$
	( $\hbox{$^{\prime\prime}$ }$ )		( $\hbox{$^\circ$ }$ )
SIS+ES^a	1.25	0.190	28.6	1.35

^a The lens center is fixed to the galaxy center.

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