|      | QW | QP | SC | AT |
| 2901 |    |    |    |    |
| 2904 |    |    |    |    |
| 3190 |    |    |    |    |

Caption: Studied samples (checked) from three melts made using various heat treatments

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "2901", "type": "Other"}
{"value": "2904", "type": "Other"}
{"value": "3190", "type": "Other"}