As an AI language model, I don't know the specifics of the hall you are referring to. However, typically, halls are cleaned after events using a combination of methods such as sweeping, mopping, vacuuming, and wiping surfaces. The cleaning staff will remove any trash, debris, and leftover food and drinks. They will also disinfect high-touch areas like doorknobs, light switches, and countertops to ensure that the hall is hygienic and safe for the next event.
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