More extended structure is resolved out by the array.
Note that the double images 2 and 5 are lensed into arcs. The elliptical lensing galaxy can be seen in the center. Images 1 and 4 are clearly seen, while 3 and 6 are missing, making variability an unlikely explanation. The identity of the images has been confirmed by comparing the spectral energy distributions of the components through multi-frequency observations. In particular, the VLBI positions of the components are important input to the lensing model.