A 9-year-old boy is brought to the emergency department after an episode at school. His teacher reports that he suddenly stopped responding mid-sentence, stared blankly, and began chewing motions with his mouth while his head tilted to the right. The episode lasted about 90 seconds. He did not fall. Afterward, he was confused and sleepy for several minutes and could not recall the event. On arrival to the ED 30 minutes later, he is back to baseline with a normal neurologic exam. Which of the following is the most likely seizure type responsible for this presentation?