Question: What is average quantity, when DRG number is 99 011?
SQL: SELECT AVG("Quantity") FROM "2-18843924-5" WHERE "DRG number(s)" = '99 011';

Question: Which railway number has 3 quantity?
SQL: SELECT "Railway number(s)" FROM "2-18843924-5" WHERE "Quantity" = 3.0;

Question: Which DRG number has XXX railway number?
SQL: SELECT "DRG number(s)" FROM "2-18843924-5" WHERE "Railway number(s)" = 'XXX';

Question: Which quantity has Axle arrangement (UIC)bauart of C n2t, and DRG number 99 093?
SQL: SELECT "Quantity" FROM "2-18843924-5" WHERE "Axle arrangement ( UIC ) Bauart" = 'C n2t' AND "DRG number(s)" = '99 093';