When Mrs Lu realized that the parent had misunderstood, she explained, "Oh, no. One is my daughter-in-law, and the other is my brother-in-law's daughter."
"Oh, I'm sorry. It's so rare to see a daughter-in-law and a niece who would shop with an elder like daughters! They are so filial, Teacher Li. You are blessed!" the parent quickly said. Then she answered Mrs Lu's previous question.