Question: What "Lost" episode's title is a reference to a children's novel written by author L. Frank Baum?
Sentence (from "Glinda of Oz"): Like most of the Oz books, the plot features a journey through some of the remoter regions of Oz; though in this case the pattern is doubled: Dorothy and Ozma travel to stop a war between the Flatheads and Skeezers; then Glinda and a cohort of Dorothy's friends set out to rescue them.
Relevant evidence: No