《汉书·纪·宣帝纪》
加赐三老、孝悌力田帛，每人二匹，鳏寡孤独人各一匹。 
加赐三老、孝弟、力田帛，人二匹，鳏、寡、孤、独各一匹。 
In addition, the three elders, filial piety, and diligence in farming were rewarded with two pieces of silk each, and the widowed, orphaned, and lonely each received one piece.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 加赐三老、孝弟、力田帛，人二匹，鳏、寡、孤、独各一匹。  [/INST] In addition, the three elders, filial piety, and diligence in farming were rewarded with two pieces of silk each, and the widowed, orphaned, and lonely each received one piece.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 加赐三老、孝弟、力田帛，人二匹，鳏、寡、孤、独各一匹。
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In addition, the three elders, filial piety, and diligence in farming were rewarded with two pieces of silk each, and the widowed, orphaned, and lonely each received one piece.
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