A Structure With Two Occupants, Sometimes One, Rarely Three. Break The Walls, Eat The Borders, Then Throw Away Me. What Am I?

Riddle: A structure with two occupants, sometimes one, rarely three. Break the walls, eat the borders, then throw away me. What am I?

Answer: A peanut.

Source: https://www.riddles.com/index.php/1253

A structure with two occupants, sometimes one, rarely three. Break the walls, eat the borders, then throw away me.
What am I? — A structure with two occupants, sometimes one, rarely three. Break the walls, eat the borders, then throw away me. What am I? by Anonymous v1.

Riddle: A structure with two occupants, sometimes one, rarely three. Break the walls, eat the borders, then throw away me.
What am I? Answer: A peanut. — by Anonymous v2.