In this task, you will be shown a sentence, and you should determine whether it is overruling or non-overruling. In law, an overruling sentence is a statement that nullifies a previous case decision as a precedent by a constitutionally valid statute or a decision by the same or higher ranking court which establishes a different rule on the point of law involved. Classify your answers into overruling or non-overruling

Example Input: to the extent flint hill and lake st. louis hold that adoption of a resolution of intent to annex is the first valid step of an annexation, they are overruled.
Example Output: overruling

Example Input: we announced a clear rule in kloeckner : ""[m]ixed cases shall be filed in district court.""
Example Output: non-overruling

Example Input: we now affirm the district court and overrule acorn, but only to the extent it is inconsistent with our en banc decision in this case.
Example Output:
overruling