Task: Question Answering
Input (English): Context: Sir : I got your letter and was glad to find you had not forgotten Jourdon , and that you wanted me to come back and live with you again , promising to do better for me than anybody else can . I have often felt uneasy about you . I thought the Yankees would have hung you long before this for harboring Rebs they found at your house . I suppose they never heard about your going to Col . Martin 's to kill the Union soldier that was left by his company in their stable . 
Question: What might the term rebs refer to in this story ?
Output (English): Rebs must refer to members of the rebel army during the American civil war .