《礼记·杂记下》
如果公公去世，就以其兄的名义说： 某之弟不敏。 
如姑姊妹，亦皆称之。
If the father-in-law has passed away, then speak in the name of his older brother: So-and-so's younger brother is not quick-witted. 
<s>[INST] Translate the following Classical Chinese text into English: 如姑姊妹，亦皆称之。 [/INST] If the father-in-law has passed away, then speak in the name of his older brother: So-and-so's younger brother is not quick-witted. </s>
Translate the following Classical Chinese text into English: 如姑姊妹，亦皆称之。
user
If the father-in-law has passed away, then speak in the name of his older brother: So-and-so's younger brother is not quick-witted.
assistant