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

Q: we therefore hold that diamond ii must be overruled.

A: overruling
****
Q: further, the prosecutor's closing arguments consistently tied the current incident to defendant's purported state of mind in 1991.

A: non-overruling
****
Q: when, as in this case, a controversy no longer exists between the parties, the case becomes moot.

A:
non-overruling
****