Question: What team 1 has a team 2 of Universidad Nacional?
SQL: SELECT "Team 1" FROM "2-15339246-3" WHERE "Team 2" = 'Universidad Nacional';

Question: What team 2 has a team 1 of Harbour View?
SQL: SELECT "Team 2" FROM "2-15339246-3" WHERE "Team 1" = 'Harbour View';

Question: What's the 2nd leg for team 2 San Francisco?
SQL: SELECT "2nd leg" FROM "2-15339246-3" WHERE "Team 2" = 'San Francisco';

Question: What's the 1st leg of team 1 Alajuelense?
SQL: SELECT "1st leg" FROM "2-15339246-3" WHERE "Team 1" = 'Alajuelense';