You can use this work for any purpose, as long as it is not primarily intended for or directed to commercial advantage or monetary compensation. You should also provide attribution to the original work, source and licence.
Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) terms and conditions https://creativecommons.org/licenses/by-nc/4.0
Three children standing in a street wearing the costumes of a witch, a lion and a pirate; an advertisement about the AIDS Forum Berlin e.V. supporting children and their families affected by AIDS and HIV. Photocopy. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)