{
 "teaser": "lego",
 "highlights": [
  "lego",
  "nuts_bolts",
  "hang_mug",
  "chess",
  "throw_bottles",
  "pouring"
 ],
 "why": {
  "lego": "both arms sort colour bricks into two bins, then one bin is tipped into the tote",
  "nuts_bolts": "the hardest task: no GPT-6 Luna success in any mode; GPT-6 Astra's standard success, both arms sorting nuts and bolts",
  "hang_mug": "a mug handed from one arm to the other and hung on the tree",
  "chess": "pieces picked off the board and placed with both arms",
  "throw_bottles": "bottles picked up and dropped into the bin",
  "pouring": "pouring from one cup into the other"
 },
 "why_fewer": ""
}