" i 'm not sure what you 're talking about , " i said . 
 " you 're not sure ? " he said . " you 're not sure ? " 
 " i 'm not sure , " i said again . 
 " you 're not sure ? " he said . " you 're not sure ? " 
 " i 'm not sure , " i said again . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said . 
 " i 'm not sure , " i said again . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said again . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said again . 
 " you 're not sure ? " he said again . 
 " i 'm not sure , " i said . 
 " you 're not sure ? " he said again . 
 " i
