CREATE TABLE "round_17" (
  "date" text,
  "home" text,
  "score" text,
  "away" text,
  "attendance" real
);

Question: What is Date, when Attendance is less than 521?
SQL: SELECT "date" FROM "round_17" WHERE "attendance"<521;

Question: What is Away, when Home is "marathon"?
SQL: SELECT "away" FROM "round_17" WHERE "home"='marathon';

Question: What is Score, when Home is "marathon"?
SQL: SELECT "score" FROM "round_17" WHERE "home"='marathon';

Question: What is the total number of Attendance(s), when Away is Real Juventud?
SQL: SELECT COUNT("attendance") FROM "round_17" WHERE "away"='real juventud';