%% BLOCK alpha %%
This is the Alpha Block
It was brought to you with the help of the letter '%% letter %%'
%% ENDBLOCK %%

--
INCLUDE the alpha block, letter 'a'
%% INCLUDE alpha letter = a %%
--

--
INCLUDE the omega block, colour 'red'
%% INCLUDE omega colour = red %%
--

%% BLOCK omega %%
This is the Omega Block
It was brought to you by the colour '%% colour %%'
%% ENDBLOCK %%