Who was the co-driver in 1970 for the race of Targa Florio?
CREATE TABLE "pedro_rodr_guez_in_porsche" (
  "year" real,
  "race" text,
  "team" text,
  "pos" text,
  "co_driver" text
);
SELECT "co_driver" FROM "pedro_rodr_guez_in_porsche" WHERE "year"=1970 AND "race"='targa florio';