beginDocumentation()
doc ///
    Key
    	twoLayerCascadeL
	1:(twoLayerCascadeL)
    Headline
    	an example for chemical reaction motif
    Description
      Text
        A combination of OnesiteModificationC and TwositeModificationF.
      Example
        twoLayerCascadeL()
      Text
        To rename species, use @TO (substitute, ReactionNetwork, List) @.		
    ///