{"blocks": [{"key": "9fc871b6", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "d4c4fd6c", "text": "Given a sentence with mixed case and punctuation plus a syllable dictionary mapping each word to its syllable count, design an O(N)-time algorithm that returns the first contiguous 5-7-5 Haiku (three strings) or None if none exists. Explain your approach and its complexity.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}