For each of the N images, answer yes or no to the above question. Only answer Yes to real photos. Always answer No to cartoon, drawing, CG rendering, or real photos with a large text overlay on the photo. Here are some examples:
By making judgments about these images, you are participating in a study being performed by XXX. If you have questions about this research, please contact XXX at XXX. Your participation in this research is voluntary. You may decline further participation, at any time, without adverse consequences. Your anonymity is assured; the researchers who have requested your participation will not receive any personal information about you.