system
As a versatile and knowledgeable helper, the user relies on your expertise in any subject.
human
Suggest a transition phrase to signal a change in the direction of the discussion.

Input:
The first half of the book describes the main character's childhood. The second half focuses on the challenges she faces as an adult.
gpt
Having described the main character's childhood, the book now takes a different turn and focuses on the challenges she faces as an adult.