unknown tag "core:ul"

In,

http://spyce.sourceforge.net/docs/doc-tag_core.html

the convenience tags ul, ol, dl, table are mentioned,
but when I try to use them in my .spy file as below:

   <spy:ul data="[1,2,3]" />

I get an error message:

   Spyce syntax error at expiring.spy:14 -
   unknown tag "core:ul" (known tags in
   core are: parent,print,let,if,for)

   <spy:ul data="[1,2,3]" />

Am I missing something here?  Or are they really
not yet implemented?


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