In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: Zenon Kar is now 18 and competing to win the Galactic Teen Supreme contest and celebrate at the Moonstock Festival on the Moon. Zenon wants to beat handsome competitor Bronley Hale. She also reunites with Moon preservation activist Sage Borealis. Sage is desperate to keep the Moon from being colonized and exploited and wants Zenon's help.
Meanwhile, Commander Edward Plank and Aunt Judy Cling's new foster daughter, Dasha, is starstruck by Zenon and finds it difficult to stay out of trouble. During the last competition for the Galactic Teen Supreme contest, the moon goddess Selena appears and threatens to destroy the Earth. It's up to Zenon to save everyone from this angry deity.
In the end, Zenon, Sage, Dasha and her friends Margie, Cassie, and Bronley team up to save the day. They evacuate everyone in Protozoa's tour bus and try to remove the Moon Dome, with each taking a hover pod. However, the dome is too heavy to be lifed, until Commander Plank and Aunt Judy, looking for Dasha, show up to help the group. They're able to help lift the dome, which they let drift off into space. Selena then destroys the rest of the base and waves goodbye as the friends return to Earth. The wild weather caused by Selena has stopped. In the end, Sage and Zenon kiss, and Protozoa's band Microbe and the new hit band, Cosmic Blush, hold a concert together.
What is the last name of the person who reunites with Sage?