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

at the very latest, the plaintiff knew in 2012 that dial was unjustly enriched by the plaintiff's work product.
non-overruling

see, e.g., thomas v. city lights sch., inc., 124 f. supp. 2d 707, 713 (d.d.c. 2000) (holding school for at-risk youth owed duty under  319 to supervise its students while on a school field trip).
non-overruling

a later case, blackwell v. hustler magazine, inc., 633 f. supp. 870, 871 (s.d.miss.

overruling