\dhead{gf}{ilayout-ichains @<ilayout> @> @<list>}}
\end{describe*}
-\begin{describe}{gf}{sod-class-ilayout <class> @> @<ilayout>}
+\begin{describe}{gf}{sod-class-ilayout @<class> @> @<ilayout>}
\end{describe}
\begin{describe}{gf}{compute-ilayout @<class> @> @<ilayout>}