Notes. Column [1] identifies the cell involved, Column [2] shows the number of source for which we know the classification from the Labeled Sources (LS): they are all AGN with the exception of cells (2,0) and (2,1), for which we report also the contaminants (galaxies or stars). In Column [3] we report the coordinates in the format (RA, Dec) of the closest labeled sources to the prototype of the given cell, and Column [4] shows how this source is labeled. Analogously, Column [5] reports the number of unlabeled sources falling into the given cell, Column [6] the coordinates of the closest unlabeled object to the prototype, and in Column [7] we report the classification (if available) from Simbad database; the classes are abbreviated in the following way: active galactic nucleus (AGN), emission-line galaxy (EmG), galaxy (GAL), supernova (SN). Labels in Columns [4] and [7] marked with an asterisk indicate whether the corresponding source is the closest to the prototype when considering both the LS and US.