Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to remove salt stains from shoes [title] Check the material. [step] Most materials can be cleaned with a basic solution of vinegar and water. However, the application of this solution differs if you have suede shoes.

Ending1: If the material you are cleaning is very wet, even minimal cleanup will not solve the problem. [substeps] Make sure to pour warm water into the shoes. Ending2: Check to see if your shoes are suede before treating stains. [substeps] If you find you have suede shoes, get a small scrub brush. Ending3: Find the source of the stain in the shoe and help clean out the flakiness. Vinegar is acidic, but it does not contaminate leather very well. Ending4: The pigment of certain fabrics such as cotton and denim bind to salt stains and stains on the shoe surface. There are other issues which you should be aware of as your suede shoe happens to be a chemical result of this natural process.

Answer format: ending1/ending2/ending3/ending4