| Materials | Specific surface area (m2 g-1) | Pore volume (cm3 g-1) | Mean pore radius (nm) |
| NBG       | 92.1+-0.3                      | 0.28+-0.01            | 3.2+-0.1              |
| MBG       | 189.2+-0.2                     | 0.37+-0.01            | 5.1+-0.1              |

Caption: The surface area, pore volume and pore size comparison of NBG and MBG.

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": "92.1", "type": "Other"}
{"value": "0.28", "type": "Other"}
{"value": "3.2", "type": "Other"}
{"value": "189.2", "type": "Other"}
{"value": "0.37", "type": "Other"}
{"value": "5.1", "type": "Other"}