The left panel shows the Hubble Space Telescope Advanced Camera for Surveys (ACS)/WFC (GO-9744, PI: C. Kochanek) images of the lens. The right panel shows the reconstructed mass distribution on a logarithmic scale along with the images positions: quasar in white, galaxy group A in lime-green, B in blue, and C in turquoise. The orientation for both figures is north up, west right.