Stage 3 of the selection procedure to find the final DPS. This algorithm sorts the fitted emission lines according to their S/N and uses the DP flags indicating confirmed DP in the specific line. All selected galaxies must have a confirmed DP in the strongest line. If the object has more than 1 (resp. 2) confirmed line(s), we must also find a DP in the second (resp. second and third) strongest line. This procedure excludes objects which have a falsely confirmed DP in some weaker lines. We finally get the DPS counting 5663 galaxies. In Table 1, we present the distribution of DP galaxies for different number of confirmed DP.