CREATE TABLE "allied_ships_sunk" (
  "date" text,
  "time" text,
  "name" text,
  "flag" text,
  "casualties" real,
  "tonnage_grt" real,
  "cargo" text,
  "sunk_by" text
);

Question: What is the sum of tonnage with a time at 00:10 and less than 42 casualties?
SQL: SELECT SUM("tonnage_grt") FROM "allied_ships_sunk" WHERE "time"='00:10' AND "casualties"<42;