col : rank | nation | gold | silver | bronze | total row 1 : 1 | venezuela | 7 | 4 | 3 | 14 row 2 : 2 | bolivia | 2 | 2 | 2 | 6 row 3 : 2 | chile | 2 | 2 | 2 | 6 row 4 : 4 | peru | 1 | 3 | 3 | 7 row 5 : 5 | ecuador | 1 | 1 | 1 | 3 row 6 : 6 | colombia | 0 | 1 | 2 | 3 row 7 : total | total | 13 | 13 | 13 | 39
which are all of the countries? which countries only had one gold metal? of those two, which country only had one silver and one bronze?
ecuador
Rank Nation Gold Silver Bronze Total
of those two, which country only had one silver and one bronze?
1 Venezuela 7 4 3 14
2 Bolivia 2 2 2 6
2 Chile 2 2 2 6
4 Peru 1 3 3 7
5 Ecuador 1 1 1 3
6 Colombia 0 1 2 3
Total Total 13 13 13 39
Ecuador
of those two, which country only had one silver and one bronze? || which countries only had one gold metal? | which are all of the countries?