CREATE TABLE "senate_composition_as_a_result_of_the_el" (
  "d_41_o" text,
  "d_42_o" text,
  "d_43_o" text,
  "d_44_o" text,
  "d_45" text,
  "r_55" text,
  "r_54" text,
  "r_53" text,
  "r_52_o" text,
  "r_51_o" text
);

Question: Which R 51 O value corresponds to a D 42 O value of r 19?
SQL: SELECT "r_51_o" FROM "senate_composition_as_a_result_of_the_el" WHERE "d_42_o"='r 19';

Question: What is the value of D 43 O that has a corresponding R 53 + value of r 8?
SQL: SELECT "d_43_o" FROM "senate_composition_as_a_result_of_the_el" WHERE "r_53"='r 8';

Question: What is the value of D 42 O that has an R 53 + value of r 8?
SQL: SELECT "d_42_o" FROM "senate_composition_as_a_result_of_the_el" WHERE "r_53"='r 8';