@@ -164,9 +164,9 @@ for `:-`, you say "colhep".
164164
165165Tall regular form starts with the rune, followed by a `gap`
166166(any whitespace except `ace`). After this is a
167−*[bulb](https://urbit.org/docs/about/glossary#bulb)*—the
168−contents of the twig—whose own twigs are separated by
169−`gap`.
167+*[bulb](https://urbit.org/docs/about/glossary#bulb)*—which
168+defines the types of content the twig can have—whose own twigs
169+are separated by `gap`.
170170
171171There are four body subtypes: *fixed*, *running*, *jogging*, and
172172*battery*. Stems with a *fixed* number of subexpressions