Section Five involves a disagreement among the Rishonim. This refers to case wherein a person or object is under the influence of a specific type of spiritual impurity or halachic prohibition. The subject then becomes involved with something that leaves it under a doubt of a different type of prohibition or impurity and then becomes cleared of the original impurity. The question is whether the "Chazakah" of the first impurity holds good to decide his status in reference to the second impurity.