On what date were less than 10 built with a locomotive number of 31-35?
CREATE TABLE "1905_1911" (
  "class" text,
  "wheels" text,
  "date" text,
  "no_built" real,
  "loco_nos" text
);
SELECT "date" FROM "1905_1911" WHERE "no_built"<10 AND "loco_nos"='31-35';