I think i am setting up the config file wrong for the xmr stak AMD miner as i keep getting this error.
 "JSON config parse error(offset 24): Missing a name for object member."

This is the config file i am trying:

"gpu_thread_num" : 1,
{ "index" : 0, "intensity" : 1000, "worksize" : 8, "affine_to_cpu" : false },
"pool_address" : "pool.sumokoin.com:3333",
"wallet_address" : "Sumoo5ngxhL3Fo4v9j5MZqgrK2UYJUH56HA8Vbp1fG3PNe6WbUwMx8w89EjVjmEjiUjXoGvaGTbhTMJ GubrSHwY8Hi4A4hTK4WK",
"pool_password" : "x",

Any idea what might be causing this error?