static void ai_spec_parseAnd(S s) {
  L<S> tok = javaTok(s);
  int i = indexOf(s, "and");
  if (i < 0) ret;
  T3<S> t = tok_tripleSplitAtToken(tok, i);
  ai_postTriple(s, "possibly parses as", curlyBrace(t3.a) + " " + t.b + " " + curlyBrace(t.c));
}