overrid add edg object edg edg edg contain edg object end object end model facad messag edg end model facad sender edg end model facad receiv edg edg comment edg end comment edg edg sourc end comment edg edg destin end defin node graph end end defin log lp log granular type statement lp log local lp log local nest statement lp log local nest ifdef sequencediagram log error edg reject end attach endif contain node end contain edg end defin log lp log granular type statement lp log local lp log local nest statement lp log local nest ifdef sequencediagram log error edg reject sourc end attach end graph model endif contain node end contain edg end defin log lp log granular type statement lp log local lp log local nest statement lp log local nest ifdef sequencediagram log error edg reject destin end attach end graph model endif 