زَيْدٌ شَاعِرٌ لَا كَاتِبٌ
Zayd is a poet, not a writer.
If the listener is undecided between two alternatives, coordination identifies the correct one and may serve qasr al-taʿyīn. Ifrād, qalb, and taʿyīn are defined by the listener’s state, not three different inflections.