الْعَقْدُ — الْحَلُّ
Prose into verse, and verse into prose.
Exercise A: turn an aphoristic prose statement into metrical verse; the direction is ʿaqd. Exercise B: convert a verse into well-formed explanatory prose; the direction is ḥall.
Preservation of sense still requires review. Verse may reorder words to meet metre; prose may expand implicit connections. Identifying direction and avoiding distortion are related but distinct skills.