Question: What is Date, when Attendance is less than 521?
SQL: SELECT "Date" FROM "2-17026847-19" WHERE "Attendance" < 521.0;

Question: What is Away, when Home is "Marathon"?
SQL: SELECT "Away" FROM "2-17026847-19" WHERE "Home" = 'Marathon';

Question: What is Score, when Home is "Marathon"?
SQL: SELECT "Score" FROM "2-17026847-19" WHERE "Home" = 'Marathon';

Question: What is the total number of Attendance(s), when Away is real juventud?
SQL: SELECT COUNT("Attendance") FROM "2-17026847-19" WHERE "Away" = 'real juventud';