WSDL with distint interfaces for return types

I've been trying to see what WSDL consumers can do, comparing the
current WSDL, with one opertion, to another with two operations, one
for each return type. My goal is to sufficiently describe SPARQL so
that a tool can set up an appropriate handler for the response.

I'm not done with my homework yet, but wanted folks to see what I was
working with.
-- 
-eric

office: +81.466.49.1170 W3C, Keio Research Institute at SFC,
                        Shonan Fujisawa Campus, Keio University,
                        5322 Endo, Fujisawa, Kanagawa 252-8520
                        JAPAN
        +1.617.258.5741 NE43-344, MIT, Cambridge, MA 02144 USA
cell:   +81.90.6533.3882

(eric@w3.org)
Feel free to forward this message to any list for any purpose other than
email address distribution.