Question: The Cherrys bought a home from the McCalls. After the Cherrys bought the home, they discovered a walled-in room in the basement. The room was filled with trash, including rusty plumbing fixtures, bathtubs, sinks, commodes, boards, pipes, rocks, and used building materials. The trash was damp and contaminated with mold. In the sales contract with the McCalls, the Cherrys contracted to accept the property "in its present condition," or "as is." The Cherrys claim that the walled-in room constitutes a mutual mistake justifying rescission. Are they correct?