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I need to return only a JSON object with winner, ratio, and explanation.\n{\n  \"winner\": \"B\",\n  \"ratio\": \"1:2\",\n  \"explanation\": \"Side B fixes Reddit children import wiring (replaces incomplete link_child with apply_entity_under_parent that properly ensures nodes and avoids comment-path segments) and unranked child labels (uses tree titles instead of display labels), enabling functional subreddit listing imports with correct SSE morphs and UI display. Side A adds validation rejecting 0:0 ratios and >100 ratios across DSL, reducer, and UI handler plus regression tests, but this is narrower invariant enforcement on existing vote logic rather than core feature wiring.","reasoning_details":[{"type":"reasoning.summary","summary":"The user wants me to compare two commits and decide which contributed more lasting value to the project. 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