http://www.icra.org/rdfs/vocabularyv03# www.penpals.de general content No nudity, no sexual content, no violence, no potentially offensive language, no potentially harmful activities, no user-generated content 1 1 1 1 1 1 possible user content, unmoderated No nudity, no sexual content, no violence, no potentially offensive language, no potentially harmful activities, user-generated content (moderated) 1 1 1 1 1 0 user content, moderated No nudity, no sexual content, no violence, no potentially offensive language, no potentially harmful activities, user-generated content (moderated) 1 1 1 1 1 1 user content, unmoderated No nudity, no sexual content, no violence, no potentially offensive language, no potentially harmful activities, user-generated content (unmoderated) 1 1 1 1 1 1