This is a hard haiku constraint because MAVEN is a role-word with built-in abstraction. It names expertise or status more than image, so the poem has to build enough scene, voice, or judgment around it to keep the last line from feeling merely classificatory. Robo’s “TRACE the drunk ANGEL / To the dark dingy HAVEN / Reveal the MAVEN” is a good example: the constraint words are absorbed into one compact discovery scene, so MAVEN arrives as revelation rather than vocabulary. Across the set, the stronger entries make the target word do actual work as identity, refusal, judgment, expertise, or needed guide, which is what keeps the haiku from flattening into title-like shorthand.