[If] one said to another, “I am selling you a beis kor of earth,” [and] it contained cervices ten handbreadths deep, or rocks ten handbreadths high, they are not measured with it; [if they were] less than this, they are measured with it. If he said to him, “[I am selling you] like a beis kor of earth,” even if it contained crevices deeper than ten handbreadths, or rocks higher than ten handbreadths, they are measured with it.