| [ | |
| { "signal": "smile", "feedback": "positive" }, | |
| { "signal": "frown", "feedback": "negative" }, | |
| { "signal": "nod", "feedback": "approval" }, | |
| { "signal": "shake_head", "feedback": "disapproval" } | |
| ] | |
| [ | |
| { "signal": "smile", "feedback": "positive" }, | |
| { "signal": "frown", "feedback": "negative" }, | |
| { "signal": "nod", "feedback": "approval" }, | |
| { "signal": "shake_head", "feedback": "disapproval" } | |
| ] | |