CREATE TABLE "senate_composition_before_the_elections" (
  "d_50" text,
  "d_49" text,
  "d_48" text,
  "d_47" text,
  "d_46" text,
  "d_45" text,
  "d_44" text,
  "d_43" text,
  "d_42" text,
  "d_41" text
);

Question: What is the D 48 when the D 50 is d 30?
SQL: SELECT "d_48" FROM "senate_composition_before_the_elections" WHERE "d_50"='d 30';

Question: What is the D 47 when the D 49 is r 32?
SQL: SELECT "d_47" FROM "senate_composition_before_the_elections" WHERE "d_49"='r 32';

Question: What is the D 50 when the D 43 is r 43?
SQL: SELECT "d_50" FROM "senate_composition_before_the_elections" WHERE "d_43"='r 43';

Question: What is the D 42 when the D 50 is d 31?
SQL: SELECT "d_42" FROM "senate_composition_before_the_elections" WHERE "d_50"='d 31';

Question: What is the D 50 when the D 41 is d 41?
SQL: SELECT "d_50" FROM "senate_composition_before_the_elections" WHERE "d_41"='d 41';

Question: What is the D 50 when the D 41 is d 41?
SQL: SELECT "d_50" FROM "senate_composition_before_the_elections" WHERE "d_41"='d 41';