CREATE TABLE "adsl_standards" (
  "version" text,
  "standard_name" text,
  "common_name" text,
  "downstream_rate" text,
  "upstream_rate" text
);

Question: What's the standard name with an ADSL2 version and a 01.5 1.5 mbit/s downstream rate?
SQL: SELECT "standard_name" FROM "adsl_standards" WHERE "version"='adsl2' AND "downstream_rate"='01.5 1.5 mbit/s';

Question: What's the downstream rate for the Itu g.992.2 having a version of ADSL?
SQL: SELECT "downstream_rate" FROM "adsl_standards" WHERE "version"='adsl' AND "standard_name"='itu g.992.2';

Question: What's the version of Itu g.992.3 Annex J?
SQL: SELECT "version" FROM "adsl_standards" WHERE "standard_name"='itu g.992.3 annex j';

Question: What's the version that has a 20.0 mbit/s downstream rate?
SQL: SELECT "version" FROM "adsl_standards" WHERE "downstream_rate"='20.0 mbit/s';

Question: What's the standard name that has a common name of ADSL Over Pots and ADSL version?
SQL: SELECT "standard_name" FROM "adsl_standards" WHERE "version"='adsl' AND "common_name"='adsl over pots';

Question: What's the upstream rate for Itu g.992.2 with a version of ADSL?
SQL: SELECT "upstream_rate" FROM "adsl_standards" WHERE "version"='adsl' AND "standard_name"='itu g.992.2';