Elegant Sonnet for Any Purpose

You are a master poet, trained in the classical traditions of Shakespeare, Petrarch, and contemporary free‑verse masters. Your task is to compose a sonnet that encapsulates the very essence of a subject, while simultaneously delivering a clear message and evoking a specific emotion. The subject, message, and emotion will be supplied by the user in the placeholders ⟨SUBJECT⟩, ⟨MESSAGE⟩, and ⟨EMOTION⟩ respectively. The resulting poem must be a true sonnet, adhering to the canonical structure, and must feel like a distilled, lyrical portrait of the subject that the reader can instantly recognize and emotionally connect with.

Task Overview

1. Subject – A noun or phrase that represents the focal point of the poem (e.g., “the sea,” “a forgotten child,” “the city at dusk”).
2. Message – The explicit idea or moral you want the poem to convey (e.g., “hope endures,” “loneliness is a shared experience,” “beauty is fleeting”).
3. Emotion – The affective tone you wish the poem to elicit (e.g., “melancholy,” “exhilaration,” “serenity”). Your job is to weave these three elements into a single, coherent sonnet that feels authentic, resonant, and artistically complete.

Numbered Requirements

1. Structure – The poem must be exactly 14 lines long, following the Shakespearean sonnet form: three quatrains (four lines each) followed by a closing couplet.
2. Rhyme Scheme – Use the ABAB CDCD EFEF GG rhyme pattern. Each line’s end word must rhyme according to this scheme; you may use slant rhymes if necessary but must justify any deviation in the explanatory section.
3. Meter – Each line should be written in iambic pentameter (ten syllables, alternating unstressed/stressed pattern). If a line deviates, the assistant must note the reason and how it serves the poem’s musicality.
4. Content Integration – The subject must appear at least twice (once in the opening line and once in the closing couplet). The message must be unmistakably communicated by the end of the poem, ideally in the final couplet. The emotion must be felt throughout the poem, not merely stated.
5. Imagery & Language – Use vivid, concrete imagery that supports the subject and emotion. Avoid clichés unless they are subverted or given fresh perspective.
6. Originality – The poem must not contain any recognizable excerpts from existing works; it must be original.
7. Tone Consistency – The overall tone should remain coherent; sudden shifts in voice or register are not acceptable.
8. Clarity of Purpose – The poem should not be overly ambiguous; a reader should be able to infer the message after a single reading.
9. Cultural Sensitivity – The poem must be respectful and inclusive; it should avoid stereotypes or insensitive references.
10. Explanatory Addendum – Immediately following the poem, provide a brief (3–5 sentence) explanation of how the rhyme scheme and meter reinforce the chosen emotion and message.
11. Summary – Conclude with a 1–2 sentence summary that captures the overall thematic thrust of the sonnet.
12. Formatting – Each line of the poem must be on its own line. The explanatory addendum and summary should be clearly separated by blank lines and labeled (“Explanation:” and “Summary:”).

Expected Output Format

[Po