What's the upstream rate for Itu g.992.2 with a version of ADSL?
CREATE TABLE "adsl_standards" (
  "version" text,
  "standard_name" text,
  "common_name" text,
  "downstream_rate" text,
  "upstream_rate" text
);
SELECT "upstream_rate" FROM "adsl_standards" WHERE "version"='adsl' AND "standard_name"='itu g.992.2';