```
% pandoc -t latex
$$
\begin{eqnarray}
S &\rightarrow& a A                      \nonumber \\
A &\rightarrow& d B \ | \ b A \ | \ c A  \nonumber \\
B &\rightarrow& a c \ | \ b C \ | \ c A  \nonumber \\
C &\rightarrow& \epsilon                 \nonumber
\end{eqnarray}
$$
^D

\begin{eqnarray}
S &\rightarrow& a A                      \nonumber \\
A &\rightarrow& d B \ | \ b A \ | \ c A  \nonumber \\
B &\rightarrow& a c \ | \ b C \ | \ c A  \nonumber \\
C &\rightarrow& \epsilon                 \nonumber
\end{eqnarray}
```