1. Problem statement. State the task: interpret the described scene and extract the main geometric features with approximate normalized coordinates and sizes. 2. Grid tile boundaries. Vertical tile boundary x coordinates are $0.05, 0.32, 0.59, 0.86$. Horizontal tile boundary y coordinates are $0.08, 0.33, 0.58, 0.82$. 3. Window. A rectangular window is centered near $ (0.72, 0.24) $ with approximate size $ (0.18, 0.14) $ (width, height) measured in normalized units. 4. Floor drain. A floor drain rectangle is near $ (0.12, 0.92) $ with approximate size $ (0.18, 0.06) $. 5. Curved pipe. A short polyline represents a curved pipe with endpoints near $ (0.52, 0.76) $ and $ (0.60, 0.84) $. 6. Dark blobs. There are approximately 8 irregular dark polygonal blobs with centroids near $ (0.12, 0.25), (0.28, 0.20), (0.44, 0.33), (0.62, 0.28), (0.78, 0.36), (0.30, 0.55), (0.55, 0.64), (0.75, 0.62) $. 7. Practical notes. These coordinates are approximate and useful for annotation, segmentation seeds, or geometric analysis. 8. Next steps. If you want, I can output these coordinates as a CSV, provide a plotted overlay, or generate polygon estimates for each blob; tell me which format you prefer.