|                       | BS 75-10-15           | BS 80-10-10           | Commercial            |
| Composition (wt%)     | Composition (wt%)     | Composition (wt%)     | Composition (wt%)     |
| SiO2                  | 78.6                  | 81.8                  | 80.4                  |
| B2O3                  | 8.2                   | 9.3                   | 13.2                  |
| Na2O                  | 13.2                  | 9.2                   | 3.5                   |
| K2O                   | -                     | -                     | 0.7                   |
| Al2O3                 | -                     | -                     | 2.4                   |
|                       |                       |                       |                       |
| Physical properties   | Physical properties   | Physical properties   | Physical properties   |
| r (g/cm3)             | 2.41 +-0.01           | 2.38 +-0.01           | 2.23 +-0.01           |
| T g (degC)            | 578                   | 607                   | 557                   |
|                       |                       |                       |                       |
| Mechanical properties | Mechanical properties | Mechanical properties | Mechanical properties |
| E (GPa)               | 76+-1                 | 74+-2                 | 63+-1                 |
| H (GPa)               | 5.3+-0.1              | 5.8+-0.1              | 5.2+-0.1              |

Caption: Composition (wt%) and selected physical and mechanical properties of the glasses considered in the present work

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": "78.6", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "BS 75-10-15"}
{"value": "81.8", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "BS 80-10-10"}
{"value": "80.4", "type": "Glass_Compound_Amount", "constituent": "SiO2", "unit": "wt", "material": "Commercial"}
{"value": "8.2", "type": "Glass_Compound_Amount", "constituent": "B2O3", "unit": "wt", "material": "BS 75-10-15"}
{"value": "9.3", "type": "Other"}
{"value": "13.2", "type": "Glass_Compound_Amount", "constituent": "Na2O", "unit": "wt", "material": "BS 75-10-15"}
{"value": "13.2", "type": "Other"}
{"value": "9.2", "type": "Glass_Compound_Amount", "constituent": "Na2O", "unit": "wt", "material": "BS 80-10-10"}
{"value": "3.5", "type": "Glass_Compound_Amount", "constituent": "Na2O", "unit": "wt", "material": "Commercial"}
{"value": "0.7", "type": "Glass_Compound_Amount", "constituent": "K2O", "unit": "wt", "material": "Commercial"}
{"value": "2.4", "type": "Glass_Compound_Amount", "constituent": "Al2O3", "unit": "wt", "material": "Commercial"}
{"value": "2.41", "type": "Other"}
{"value": "2.38", "type": "Other"}
{"value": "2.23", "type": "Other"}
{"value": "578", "type": "Other"}
{"value": "607", "type": "Other"}
{"value": "557", "type": "Other"}
{"value": "76", "type": "Other"}
{"value": "74", "type": "Other"}
{"value": "63", "type": "Other"}
{"value": "5.3", "type": "Other"}
{"value": "5.8", "type": "Other"}
{"value": "5.2", "type": "Other"}