Complex sentence: Racing to the core, the Doctor injects the ghost into the core before it completely degrades; inside the restored simulation, Song finds herself with her team, including a restored Miss Evangelista, the young girl Charlotte, and Dr. Moon.
Split into simpler sentences: Racing to the core, the Doctor injects the ghost into the core before it completely degrades. Inside the restored simulation, Song finds herself with her team, including a restored Miss Evangelista, the young girl Charlotte, and Dr. Moon.