فَلْيَضْحَكُوا قَلِيلًا وَلْيَبْكُوا كَثِيرًا
Let them laugh a little and weep much.
The contrast between actions is one level; the contrast in quantities is another. Together they form a structured muqābalah. A student noting opposition has found part of the evidence, but a complete response explains the ordered pairs.
A model answer identifies the text, both oppositional pairs, their alignment, and the expressive force of sharply limited laughter against extensive weeping. Establishing one device does not automatically exclude another.