Table:
text: 1991 World Wrestling Championships
Medal table
Medal table
Rank_ Nation Gold Silver Bronze Total
16 Turkey 0 1 1 2
18 Greece 0 1 0 1
18 Italy 0 1 0 1
18 North Korea 0 1 0 1
21 Finland 0 0 1 1
21 Yugoslavia 0 0 1 1
Total Total 29 29 29 87

Question: How many silver medals did Turkey win at the 1991 World Wrestling Championships?