[parenscript-devel] question about WHO-PS-HTML syntax

hi, what's the parenscript WHO-PS-HTML syntax of this html snippet: <p>t0<span>t1</span></p> I tried (who-ps-html (:p "t0" (:span "t1"))), which evals to an error, saying function :span is not defined. Althrough I also found that CL-WHO accepts the following: (who:with-html-output-to-string (s) (:p "t0" (:span "t1"))) Thanks.