When she arrived, the wife asked, "Can you cook?"
"No," said the girl, "My mother always did that."
"Can you do housework?" asked the wife.
"No, my oldest sister always did that."
"Well," said the wife, "You'd better just look after the children."
"I don't know how," said the girl. "My youngest sister always did that."
"What can you do, then?" asked the wife, in desperation.
"Well," said the Finnish girl brightly,
Spoiler:
