What is the event 3 africa stone result for the man with an 1= (11 reps) event 2 squat lift result and a  3= (5 reps) event 4 overhead lift i result?
CREATE TABLE "heat_4" (
  "position" text,
  "name" text,
  "nationality" text,
  "event_1_giant_farmers_walk" text,
  "event_2_squat_lift" text,
  "event_3_africa_stone" text,
  "event_4_overhead_lift" text,
  "event_5_deadlift_hold" text,
  "event_6_loading_race" text
);
SELECT "event_3_africa_stone" FROM "heat_4" WHERE "event_2_squat_lift"='1= (11 reps)' AND "event_4_overhead_lift"='3= (5 reps)';