New Kal Zakzouk sidewalk chalk art at 20th and Irving in #SanFrancisco: an enlightened rainbow being orbited by some demon 🎭️masks🎭️ that look frowny/smiley depending on whether you view them right-side-up or upside-down. Because I don't know how to talk about image-y things, only wordplay things, I want to call those masks semordnilaps, but I bet there's a better word for them.