What is the cost of an Open Source that is no?
CREATE TABLE "list_of_source_code_editors" (
  "editor" text,
  "site" text,
  "style_clone_of" text,
  "cost_us" text,
  "open_source" text,
  "activity" text
);
SELECT "cost_us" FROM "list_of_source_code_editors" WHERE "open_source"='no';