Example of the artificial dense light curve (continuous blue line), its convolution with the BLR response (continuous red line), observational points in i band set by the cadence (red circles), and observational points in r set by the cadence, with contamination from the CIV line (blue circles). Green points represent the net contamination for ϵ_i = 1.0 (see Eq. (2)). The delay is calculated between the green and blue points. We adopt standard values of the parameters from Table 2 and z = 2.7.