Input (grade 13): The Ebers papyrus (Egypt, 1550 BC) indicates that ancient Egyptians bathed regularly and combined animal and vegetable oils with alkaline salts to create a soap-like substance.
Output (grade 12): The Ebers papyrus (Egypt, 1550 BC) looks like that ancient Egyptians bathed commonly and had animal and vegetable oils with alkaline salts to make a soap-like substance.