Who owns the furniture in a usufructuary apartment?

Gift-sharing: My wife owns a house, while her mother has the usufruct of one of the 2 apartments. Who will own the furniture when her mother dies? the bare owner or the heirs? 


If the gift concerns real estate, the furniture is not included in the gift unless this was specified at the time of the bequest.

In this case, the furniture will be included in the estate.