call_id,turn_id,span_index,start_ms,end_ms,label,confidence,reason,annotator
demo,u001,0,4400,5600,hold,high,mid_turn_pause,A
demo,u001,1,7100,7900,eot,high,completed_turn,A
demo,u002,0,9250,9800,eot,high,completed_answer,A