Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to make a doll house into a hamster cage [title] Find an unwanted dollhouse. [step] Unless it's particularly grotty, a warm, soapy wash should be sufficient for cleaning the doll house walls, floors and other surfaces. Use a little detergent for something stronger.

Ending1: This is best done on a warm, sunny day to allow for good drying, or if you're able to leave it in a room which is very, very warm. [substeps] Remove all wallpaper surfaces, carpets and anything else stuck to the dollhouse. Ending2: [substeps] Ensure the dollhouse is square or rectangular, not a rectangle, as this allows a bigger space. This creates a more nesting space, making it easier to move the doll house. Ending3: [substeps] For small cages, you'll probably be able to make a cage of a thicker fabric or vinyl material, rather than a plain or doily like material. The material as it dries could damage the hamster, and thus the hamster cage itself. Ending4: If it smells awful, it is probably not safe to do anything else. [title] Put it away after the wash-out.

Answer format: ending1/ending2/ending3/ending4