View Compilation Error

0_0_29743648_25951.cpp:11:9: error: stray '`' in program
         set <string> tp;x`
         ^
0_0_29743648_25951.cpp: In function 'int main()':
0_0_29743648_25951.cpp:11:25: error: 'x' was not declared in this scope
         set <string> tp;x`
                         ^
0_0_29743648_25951.cpp:14:15: error: 'ss' was not declared in this scope
         while(ss>>str)
               ^