CREATE TABLE "24_hours_of_le_mans_results" (
  "year" real,
  "team" text,
  "co_drivers" text,
  "class" text,
  "pos" text,
  "class_pos" text
);

Question: Which class has a Class Position of 6th?
SQL: SELECT "class" FROM "24_hours_of_le_mans_results" WHERE "class_pos"='6th';

Question: Which class has a Year of 1968?
SQL: SELECT "class" FROM "24_hours_of_le_mans_results" WHERE "year"=1968;

Question: Which class has a Team of kouros racing team?
SQL: SELECT "class" FROM "24_hours_of_le_mans_results" WHERE "team"='kouros racing team';