Table: afc_cup_matches_3
Columns: season
team_1
score
team_2
venue

Question: Which season was there a game with the score of 1:3 played at the venue of national stadium, maldives?
SQL: SELECT SUM("season") FROM afc_cup_matches_3 WHERE "score" = '1:3' AND "venue" = 'national stadium, maldives'

Question: What was the venue of the match where the score was 1:3 and team 2 was binh duong?
SQL: SELECT "venue" FROM afc_cup_matches_3 WHERE "score" = '1:3' AND "team_2" = 'binh duong'

Question: What was the score of the game when team 2 was club valencia?
SQL: SELECT "score" FROM afc_cup_matches_3 WHERE "team_2" = 'club valencia'

Question: What was the venue of the match where team 2 was pea and the score was 1:3?
SQL: SELECT "venue" FROM afc_cup_matches_3 WHERE "team_2" = 'pea' AND "score" = '1:3'