what is the stroke where the vehicle code is t211?
CREATE TABLE "engines" (
  "vehicle_code" text,
  "bore_mm" text,
  "stroke_mm" text,
  "capacity_cm_3" real,
  "compression_ratio" text,
  "torque_n_m" real,
  "power_hp" real
);
SELECT "stroke_mm" FROM "engines" WHERE "vehicle_code"='T211';