sentence: There are two high school students in the high school cafeteria standing next to a table where some students are sitting. sentence:  One of the students is undressing and changing his shorts while the other student in a red shirt is watching him. sentence:  After the student finishes changing, the boy in the red shirt makes fun of him. sentence:  The student gets provoked and punches the boy in the red shirt on his face, causing him to fall on the ground on his head.