Question: What is the class of the A1 bm type?
SQL: SELECT "Class" FROM "2-18934662-10" WHERE "Type" = 'A1 bm';

Question: What is the quantity of the AW class?
SQL: SELECT "Quantity" FROM "2-18934662-10" WHERE "Class" = 'AW';

Question: What is the class with 1 quantity?
SQL: SELECT "Class" FROM "2-18934662-10" WHERE "Quantity" = '1';

Question: What is the railway number of the AW class?
SQL: SELECT "Railway number(s)" FROM "2-18934662-10" WHERE "Class" = 'AW';