Answer the question about the following passage:

Aladdin showed his mother the dusty old lamp. "Perhaps we can sell it if we polish it up first," she said. When Aladdin set to work polishing the lamp, a genie appeared! "I am the spirit of the lamp! Command, and I obey." Delighted, Aladdin asked the genie for food, and a feast appeared. Aladdin began to dream of the wonderful things he could do with the help of the genie. He would ask for new clothes, a big house to live in, and camels to ride.

How can you tell that Aladdin and his mother are poor?