Question: What is the D 48 when the D 50 is D 30?
SQL: SELECT "D 48" FROM "2-1177289-2" WHERE "D 50" = 'D 30';

Question: What is the D 47 when the D 49 is R 32?
SQL: SELECT "D 47" FROM "2-1177289-2" WHERE "D 49" = 'R 32';

Question: What is the D 50 when the D 43 is R 43?
SQL: SELECT "D 50" FROM "2-1177289-2" WHERE "D 43" = 'R 43';

Question: What is the D 42 when the D 50 is D 31?
SQL: SELECT "D 42" FROM "2-1177289-2" WHERE "D 50" = 'D 31';

Question: What is the D 50 when the D 41 is D 41?
SQL: SELECT "D 50" FROM "2-1177289-2" WHERE "D 41" = 'D 41';