CREATE TABLE "vehicle_numbers" (
  "number" text,
  "type" text,
  "seating" text,
  "diagram_no" real,
  "lot_no" real,
  "weight" text
);

Question: Which vehicle has a Diagram of 516 or smaller, and a driving motor brake second (dmbs) type.
SQL: SELECT "seating" FROM "vehicle_numbers" WHERE "diagram_no">516 AND "type"='driving motor brake second (dmbs)';