To load up Pseudoscheme into LSW:

  ;; Enter the top-level LSW directory.
  (load "start")
  (asdf:operate 'asdf:load-op :pseudoscheme)
  (ps:scheme)
  (load "pseudo/load.scm")

The URI `!' syntax is almost the same as in CL LSW, except that
!foo:bar will yield a URI rather than an expression (MAKE-URI NIL
"foo:bar"), because (1) Pseudoscheme wants NIL quoted, but (2) Alan's
EVAL-URI-READER-MACRO doesn't handle a quoted NIL gracefully.

`pseudo-slime.el' has some amenities for editing Pseudoscheme source
files in Emacs.  It can be loaded with `M-x load-file RET
/path/to/pseudo-slime.el RET'.  At present, it just adds a hook after
SLIME loads so that any buffer with a `pseudoscheme-package' variable
in the `-*-' line will set `slime-buffer-package', so that SLIME will
evaluate code in the appropriate package.  (Note that this also
requires `pseudo-slime.scm', which `pseudo/load.scm' will load, so that
the text will also be sent in the correct readtable.)

SPARQL can be invoked through the CL-USER::SPARQL symbol; example,
after running the instructions printed by the start.lisp script to load
up a knowledge base:

  scheme> (cl:pprint
           (cl-user::sparql
            '(:select (?mol) ()
              (?mol !bug:classifiedByKEGG ?kegg)
              (?kegg !bug:hasID "C00645"))
            :use-reasoner #t))

  ((!<http://gcrg.ucsd.edu/ijr904/acmana>)
   (!<http://ecocyc.org/compound/n-acetyl-d-mannosamine>))
  ; No value

Java can be invoked with the (#"..." syntax).  The procedure NEW acts
just like in CL LSW, to construct a new Java instance.