CREATE TABLE "comparison_chart" (
  "project" text,
  "license" text,
  "date" text,
  "protocol" text,
  "technology" text,
  "server" text,
  "client" text,
  "web_client" text,
  "multiple_sessions" text,
  "encryption" text,
  "authentication" text,
  "data_compression" text,
  "image_quality" text,
  "color_quality" text,
  "file_transfer" text,
  "clipboard_transfer" text,
  "chat" text,
  "relay" text,
  "http_tunnel" text,
  "proxy" text
);

Question: who is the web client when the client is x and the project is goto servers vnc java server (gsvncj)?
SQL: SELECT "web_client" FROM "comparison_chart" WHERE "client"='x' AND "project"='goto servers vnc java server (gsvncj)';

Question: what is the color quality when the proxy is x, the encryption is x, the webclient is x and authentication is  ✓?
SQL: SELECT "color_quality" FROM "comparison_chart" WHERE "proxy"='x' AND "encryption"='x' AND "web_client"='x' AND "authentication"='✓';

Question: what is the color quality when the relay is ✓?
SQL: SELECT "color_quality" FROM "comparison_chart" WHERE "relay"='✓';

Question: what is the proxy when the image quality is ✓, the encryption is ssl and the license is proprietary?
SQL: SELECT "proxy" FROM "comparison_chart" WHERE "image_quality"='✓' AND "encryption"='ssl' AND "license"='proprietary';

Question: what is the image quality when the multiple sessions is x, the authentication is ✓ and the date is may 15, 2007?
SQL: SELECT "image_quality" FROM "comparison_chart" WHERE "multiple_sessions"='x' AND "authentication"='✓' AND "date"='may 15, 2007';