When writing an Article, sometimes including a single Idea as Support is enough to have it make sense. However, in some instances the writer will need to include a supporting idea that also has its own support to force the idea to make sense.
For example, in the Carole Baskin article, the writer could end idea 7 with the supporting idea 7.c. ("Lewis was never seen again since 1997"). However, the article makes more sense when it includies7.c.i. and 7.c.ii., giving two elements of support for why "The disappearance itself was extremely strange."