CWJ stands for Creative Writing Journal. Sometimes where I work, we have a Creative Writing Drill. Sometimes our writing cue is a thing like, "Best Vacation Ever." Other times, we bring out a flip chart that gives us a random setting, character, and plot.
This time the cue was:
Setting: A long time ago
Character: a monkey (formerly firefly)
Plot: A character gets lost
This one was written in one session, plus a little more. Probably. But not much. This one came together as I was writing it, so I didn't use much beyond the 30-ish minutes given to us.