{"blocks": [{"key": "2c108123", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "51a6cd3a", "text": "Design an analytical database for tracking user actions—search item, view item page, login, add to cart, view cart, purchase, view order—so it can efficiently answer pre-written queries such as:", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "490d9bc5", "text": "How many users from Asia viewed item A this month?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6dd89209", "text": "What are the three highest-value orders at present?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "93153d02", "text": "Describe schema, event model, and data flow.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}