What the something was would make a difference.
If it's water soluble, you might try lightly wetting it in hopes it dilutes it and allows the stain to soak deeper below the surface.
You might try a dilute solution of an oxygen bleach...which would be safer than chlorine bleach.
You might try a laundry stain remover that works with enzymes...forget the name of the stuff.
Much of that will probably look better when it dries (I'm assuming it's still wet), but I think I'd work up.
You have an exit strategy if needed, so good luck with my guesses!
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A recent set
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